diff --git a/package-lock.json b/package-lock.json
index cd993ca..95bc984 100644
--- a/package-lock.json
+++ b/package-lock.json
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-        "resolve-from": "^4.0.0",
-        "rimraf": "^2.6.2",
-        "signal-exit": "^3.0.2",
-        "spawn-wrap": "^1.4.2",
-        "test-exclude": "^5.0.0",
-        "uuid": "^3.3.2",
+        "archy": "1.0.0",
+        "arrify": "1.0.1",
+        "caching-transform": "2.0.0",
+        "convert-source-map": "1.6.0",
+        "debug-log": "1.0.1",
+        "find-cache-dir": "2.0.0",
+        "find-up": "3.0.0",
+        "foreground-child": "1.5.6",
+        "glob": "7.1.3",
+        "istanbul-lib-coverage": "2.0.1",
+        "istanbul-lib-hook": "2.0.1",
+        "istanbul-lib-instrument": "3.0.0",
+        "istanbul-lib-report": "2.0.2",
+        "istanbul-lib-source-maps": "2.0.1",
+        "istanbul-reports": "2.0.1",
+        "make-dir": "1.3.0",
+        "merge-source-map": "1.1.0",
+        "resolve-from": "4.0.0",
+        "rimraf": "2.6.2",
+        "signal-exit": "3.0.2",
+        "spawn-wrap": "1.4.2",
+        "test-exclude": "5.0.0",
+        "uuid": "3.3.2",
         "yargs": "11.1.0",
-        "yargs-parser": "^9.0.2"
+        "yargs-parser": "9.0.2"
       },
       "dependencies": {
         "align-text": {
@@ -884,9 +884,9 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "kind-of": "^3.0.2",
-            "longest": "^1.0.1",
-            "repeat-string": "^1.5.2"
+            "kind-of": "3.2.2",
+            "longest": "1.0.1",
+            "repeat-string": "1.6.1"
           }
         },
         "amdefine": {
@@ -904,7 +904,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "default-require-extensions": "^2.0.0"
+            "default-require-extensions": "2.0.0"
           }
         },
         "archy": {
@@ -932,7 +932,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "balanced-match": "^1.0.0",
+            "balanced-match": "1.0.0",
             "concat-map": "0.0.1"
           }
         },
@@ -946,10 +946,10 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "make-dir": "^1.0.0",
-            "md5-hex": "^2.0.0",
-            "package-hash": "^2.0.0",
-            "write-file-atomic": "^2.0.0"
+            "make-dir": "1.3.0",
+            "md5-hex": "2.0.0",
+            "package-hash": "2.0.0",
+            "write-file-atomic": "2.3.0"
           }
         },
         "camelcase": {
@@ -964,8 +964,8 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "align-text": "^0.1.3",
-            "lazy-cache": "^1.0.3"
+            "align-text": "0.1.4",
+            "lazy-cache": "1.0.4"
           }
         },
         "cliui": {
@@ -974,8 +974,8 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "center-align": "^0.1.1",
-            "right-align": "^0.1.1",
+            "center-align": "0.1.3",
+            "right-align": "0.1.3",
             "wordwrap": "0.0.2"
           },
           "dependencies": {
@@ -1007,7 +1007,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "safe-buffer": "~5.1.1"
+            "safe-buffer": "5.1.2"
           }
         },
         "cross-spawn": {
@@ -1015,8 +1015,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "lru-cache": "^4.0.1",
-            "which": "^1.2.9"
+            "lru-cache": "4.1.3",
+            "which": "1.3.1"
           }
         },
         "debug": {
@@ -1042,7 +1042,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "strip-bom": "^3.0.0"
+            "strip-bom": "3.0.0"
           }
         },
         "error-ex": {
@@ -1050,7 +1050,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "is-arrayish": "^0.2.1"
+            "is-arrayish": "0.2.1"
           }
         },
         "es6-error": {
@@ -1063,13 +1063,13 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "cross-spawn": "^5.0.1",
-            "get-stream": "^3.0.0",
-            "is-stream": "^1.1.0",
-            "npm-run-path": "^2.0.0",
-            "p-finally": "^1.0.0",
-            "signal-exit": "^3.0.0",
-            "strip-eof": "^1.0.0"
+            "cross-spawn": "5.1.0",
+            "get-stream": "3.0.0",
+            "is-stream": "1.1.0",
+            "npm-run-path": "2.0.2",
+            "p-finally": "1.0.0",
+            "signal-exit": "3.0.2",
+            "strip-eof": "1.0.0"
           },
           "dependencies": {
             "cross-spawn": {
@@ -1077,9 +1077,9 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "lru-cache": "^4.0.1",
-                "shebang-command": "^1.2.0",
-                "which": "^1.2.9"
+                "lru-cache": "4.1.3",
+                "shebang-command": "1.2.0",
+                "which": "1.3.1"
               }
             }
           }
@@ -1089,9 +1089,9 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "commondir": "^1.0.1",
-            "make-dir": "^1.0.0",
-            "pkg-dir": "^3.0.0"
+            "commondir": "1.0.1",
+            "make-dir": "1.3.0",
+            "pkg-dir": "3.0.0"
           }
         },
         "find-up": {
@@ -1099,7 +1099,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "locate-path": "^3.0.0"
+            "locate-path": "3.0.0"
           }
         },
         "foreground-child": {
@@ -1107,8 +1107,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "cross-spawn": "^4",
-            "signal-exit": "^3.0.0"
+            "cross-spawn": "4.0.2",
+            "signal-exit": "3.0.2"
           }
         },
         "fs.realpath": {
@@ -1131,12 +1131,12 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "fs.realpath": "^1.0.0",
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
+            "fs.realpath": "1.0.0",
+            "inflight": "1.0.6",
+            "inherits": "2.0.3",
+            "minimatch": "3.0.4",
+            "once": "1.4.0",
+            "path-is-absolute": "1.0.1"
           }
         },
         "graceful-fs": {
@@ -1149,10 +1149,10 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "async": "^1.4.0",
-            "optimist": "^0.6.1",
-            "source-map": "^0.4.4",
-            "uglify-js": "^2.6"
+            "async": "1.5.2",
+            "optimist": "0.6.1",
+            "source-map": "0.4.4",
+            "uglify-js": "2.8.29"
           },
           "dependencies": {
             "source-map": {
@@ -1160,7 +1160,7 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "amdefine": ">=0.0.4"
+                "amdefine": "1.0.1"
               }
             }
           }
@@ -1185,8 +1185,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "once": "^1.3.0",
-            "wrappy": "1"
+            "once": "1.4.0",
+            "wrappy": "1.0.2"
           }
         },
         "inherits": {
@@ -1214,7 +1214,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "builtin-modules": "^1.0.0"
+            "builtin-modules": "1.1.1"
           }
         },
         "is-fullwidth-code-point": {
@@ -1242,7 +1242,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "append-transform": "^1.0.0"
+            "append-transform": "1.0.0"
           }
         },
         "istanbul-lib-report": {
@@ -1250,9 +1250,9 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "istanbul-lib-coverage": "^2.0.1",
-            "make-dir": "^1.3.0",
-            "supports-color": "^5.4.0"
+            "istanbul-lib-coverage": "2.0.1",
+            "make-dir": "1.3.0",
+            "supports-color": "5.4.0"
           }
         },
         "istanbul-lib-source-maps": {
@@ -1260,11 +1260,11 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "debug": "^3.1.0",
-            "istanbul-lib-coverage": "^2.0.1",
-            "make-dir": "^1.3.0",
-            "rimraf": "^2.6.2",
-            "source-map": "^0.6.1"
+            "debug": "3.1.0",
+            "istanbul-lib-coverage": "2.0.1",
+            "make-dir": "1.3.0",
+            "rimraf": "2.6.2",
+            "source-map": "0.6.1"
           },
           "dependencies": {
             "source-map": {
@@ -1279,7 +1279,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "handlebars": "^4.0.11"
+            "handlebars": "4.0.11"
           }
         },
         "json-parse-better-errors": {
@@ -1292,7 +1292,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "is-buffer": "^1.1.5"
+            "is-buffer": "1.1.6"
           }
         },
         "lazy-cache": {
@@ -1306,7 +1306,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "invert-kv": "^1.0.0"
+            "invert-kv": "1.0.0"
           }
         },
         "load-json-file": {
@@ -1314,10 +1314,10 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "graceful-fs": "^4.1.2",
-            "parse-json": "^4.0.0",
-            "pify": "^3.0.0",
-            "strip-bom": "^3.0.0"
+            "graceful-fs": "4.1.11",
+            "parse-json": "4.0.0",
+            "pify": "3.0.0",
+            "strip-bom": "3.0.0"
           }
         },
         "locate-path": {
@@ -1325,8 +1325,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "p-locate": "^3.0.0",
-            "path-exists": "^3.0.0"
+            "p-locate": "3.0.0",
+            "path-exists": "3.0.0"
           }
         },
         "lodash.flattendeep": {
@@ -1344,8 +1344,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "pseudomap": "^1.0.2",
-            "yallist": "^2.1.2"
+            "pseudomap": "1.0.2",
+            "yallist": "2.1.2"
           }
         },
         "make-dir": {
@@ -1353,7 +1353,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "pify": "^3.0.0"
+            "pify": "3.0.0"
           }
         },
         "md5-hex": {
@@ -1361,7 +1361,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "md5-o-matic": "^0.1.1"
+            "md5-o-matic": "0.1.1"
           }
         },
         "md5-o-matic": {
@@ -1374,7 +1374,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "mimic-fn": "^1.0.0"
+            "mimic-fn": "1.2.0"
           }
         },
         "merge-source-map": {
@@ -1382,7 +1382,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "source-map": "^0.6.1"
+            "source-map": "0.6.1"
           },
           "dependencies": {
             "source-map": {
@@ -1402,7 +1402,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "brace-expansion": "^1.1.7"
+            "brace-expansion": "1.1.11"
           }
         },
         "minimist": {
@@ -1435,10 +1435,10 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "hosted-git-info": "^2.1.4",
-            "is-builtin-module": "^1.0.0",
-            "semver": "2 || 3 || 4 || 5",
-            "validate-npm-package-license": "^3.0.1"
+            "hosted-git-info": "2.7.1",
+            "is-builtin-module": "1.0.0",
+            "semver": "5.5.0",
+            "validate-npm-package-license": "3.0.3"
           }
         },
         "npm-run-path": {
@@ -1446,7 +1446,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "path-key": "^2.0.0"
+            "path-key": "2.0.1"
           }
         },
         "number-is-nan": {
@@ -1459,7 +1459,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "wrappy": "1"
+            "wrappy": "1.0.2"
           }
         },
         "optimist": {
@@ -1467,8 +1467,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "minimist": "~0.0.1",
-            "wordwrap": "~0.0.2"
+            "minimist": "0.0.10",
+            "wordwrap": "0.0.3"
           }
         },
         "os-homedir": {
@@ -1481,9 +1481,9 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "execa": "^0.7.0",
-            "lcid": "^1.0.0",
-            "mem": "^1.1.0"
+            "execa": "0.7.0",
+            "lcid": "1.0.0",
+            "mem": "1.1.0"
           }
         },
         "p-finally": {
@@ -1496,7 +1496,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "p-try": "^2.0.0"
+            "p-try": "2.0.0"
           }
         },
         "p-locate": {
@@ -1504,7 +1504,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "p-limit": "^2.0.0"
+            "p-limit": "2.0.0"
           }
         },
         "p-try": {
@@ -1517,10 +1517,10 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "graceful-fs": "^4.1.11",
-            "lodash.flattendeep": "^4.4.0",
-            "md5-hex": "^2.0.0",
-            "release-zalgo": "^1.0.0"
+            "graceful-fs": "4.1.11",
+            "lodash.flattendeep": "4.4.0",
+            "md5-hex": "2.0.0",
+            "release-zalgo": "1.0.0"
           }
         },
         "parse-json": {
@@ -1528,8 +1528,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "error-ex": "^1.3.1",
-            "json-parse-better-errors": "^1.0.1"
+            "error-ex": "1.3.2",
+            "json-parse-better-errors": "1.0.2"
           }
         },
         "path-exists": {
@@ -1552,7 +1552,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "pify": "^3.0.0"
+            "pify": "3.0.0"
           }
         },
         "pify": {
@@ -1565,7 +1565,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "find-up": "^3.0.0"
+            "find-up": "3.0.0"
           }
         },
         "pseudomap": {
@@ -1578,9 +1578,9 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "load-json-file": "^4.0.0",
-            "normalize-package-data": "^2.3.2",
-            "path-type": "^3.0.0"
+            "load-json-file": "4.0.0",
+            "normalize-package-data": "2.4.0",
+            "path-type": "3.0.0"
           }
         },
         "read-pkg-up": {
@@ -1588,8 +1588,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "find-up": "^3.0.0",
-            "read-pkg": "^3.0.0"
+            "find-up": "3.0.0",
+            "read-pkg": "3.0.0"
           }
         },
         "release-zalgo": {
@@ -1597,7 +1597,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "es6-error": "^4.0.1"
+            "es6-error": "4.1.1"
           }
         },
         "repeat-string": {
@@ -1626,7 +1626,7 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "align-text": "^0.1.1"
+            "align-text": "0.1.4"
           }
         },
         "rimraf": {
@@ -1634,7 +1634,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "glob": "^7.0.5"
+            "glob": "7.1.3"
           }
         },
         "safe-buffer": {
@@ -1657,7 +1657,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "shebang-regex": "^1.0.0"
+            "shebang-regex": "1.0.0"
           }
         },
         "shebang-regex": {
@@ -1681,12 +1681,12 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "foreground-child": "^1.5.6",
-            "mkdirp": "^0.5.0",
-            "os-homedir": "^1.0.1",
-            "rimraf": "^2.6.2",
-            "signal-exit": "^3.0.2",
-            "which": "^1.3.0"
+            "foreground-child": "1.5.6",
+            "mkdirp": "0.5.1",
+            "os-homedir": "1.0.2",
+            "rimraf": "2.6.2",
+            "signal-exit": "3.0.2",
+            "which": "1.3.1"
           }
         },
         "spdx-correct": {
@@ -1694,8 +1694,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "spdx-expression-parse": "^3.0.0",
-            "spdx-license-ids": "^3.0.0"
+            "spdx-expression-parse": "3.0.0",
+            "spdx-license-ids": "3.0.0"
           }
         },
         "spdx-exceptions": {
@@ -1708,8 +1708,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "spdx-exceptions": "^2.1.0",
-            "spdx-license-ids": "^3.0.0"
+            "spdx-exceptions": "2.1.0",
+            "spdx-license-ids": "3.0.0"
           }
         },
         "spdx-license-ids": {
@@ -1722,8 +1722,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "is-fullwidth-code-point": "^2.0.0",
-            "strip-ansi": "^4.0.0"
+            "is-fullwidth-code-point": "2.0.0",
+            "strip-ansi": "4.0.0"
           }
         },
         "strip-ansi": {
@@ -1731,7 +1731,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "ansi-regex": "^3.0.0"
+            "ansi-regex": "3.0.0"
           }
         },
         "strip-bom": {
@@ -1749,7 +1749,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "has-flag": "^3.0.0"
+            "has-flag": "3.0.0"
           }
         },
         "test-exclude": {
@@ -1757,10 +1757,10 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "arrify": "^1.0.1",
-            "minimatch": "^3.0.4",
-            "read-pkg-up": "^4.0.0",
-            "require-main-filename": "^1.0.1"
+            "arrify": "1.0.1",
+            "minimatch": "3.0.4",
+            "read-pkg-up": "4.0.0",
+            "require-main-filename": "1.0.1"
           }
         },
         "uglify-js": {
@@ -1769,9 +1769,9 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "source-map": "~0.5.1",
-            "uglify-to-browserify": "~1.0.0",
-            "yargs": "~3.10.0"
+            "source-map": "0.5.7",
+            "uglify-to-browserify": "1.0.2",
+            "yargs": "3.10.0"
           },
           "dependencies": {
             "yargs": {
@@ -1780,9 +1780,9 @@
               "dev": true,
               "optional": true,
               "requires": {
-                "camelcase": "^1.0.2",
-                "cliui": "^2.1.0",
-                "decamelize": "^1.0.0",
+                "camelcase": "1.2.1",
+                "cliui": "2.1.0",
+                "decamelize": "1.2.0",
                 "window-size": "0.1.0"
               }
             }
@@ -1804,8 +1804,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "spdx-correct": "^3.0.0",
-            "spdx-expression-parse": "^3.0.0"
+            "spdx-correct": "3.0.0",
+            "spdx-expression-parse": "3.0.0"
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         "which": {
@@ -1813,7 +1813,7 @@
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           "dev": true,
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-            "isexe": "^2.0.0"
+            "isexe": "2.0.0"
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@@ -1837,8 +1837,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "string-width": "^1.0.1",
-            "strip-ansi": "^3.0.1"
+            "string-width": "1.0.2",
+            "strip-ansi": "3.0.1"
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@@ -1851,7 +1851,7 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "number-is-nan": "^1.0.0"
+                "number-is-nan": "1.0.1"
               }
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             "string-width": {
@@ -1859,9 +1859,9 @@
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               "dev": true,
               "requires": {
-                "code-point-at": "^1.0.0",
-                "is-fullwidth-code-point": "^1.0.0",
-                "strip-ansi": "^3.0.0"
+                "code-point-at": "1.1.0",
+                "is-fullwidth-code-point": "1.0.0",
+                "strip-ansi": "3.0.1"
               }
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             "strip-ansi": {
@@ -1869,7 +1869,7 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "ansi-regex": "^2.0.0"
+                "ansi-regex": "2.1.1"
               }
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@@ -1884,9 +1884,9 @@
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           "requires": {
-            "graceful-fs": "^4.1.11",
-            "imurmurhash": "^0.1.4",
-            "signal-exit": "^3.0.2"
+            "graceful-fs": "4.1.11",
+            "imurmurhash": "0.1.4",
+            "signal-exit": "3.0.2"
           }
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         "y18n": {
@@ -1904,18 +1904,18 @@
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-            "cliui": "^4.0.0",
-            "decamelize": "^1.1.1",
-            "find-up": "^2.1.0",
-            "get-caller-file": "^1.0.1",
-            "os-locale": "^2.0.0",
-            "require-directory": "^2.1.1",
-            "require-main-filename": "^1.0.1",
-            "set-blocking": "^2.0.0",
-            "string-width": "^2.0.0",
-            "which-module": "^2.0.0",
-            "y18n": "^3.2.1",
-            "yargs-parser": "^9.0.2"
+            "cliui": "4.1.0",
+            "decamelize": "1.2.0",
+            "find-up": "2.1.0",
+            "get-caller-file": "1.0.3",
+            "os-locale": "2.1.0",
+            "require-directory": "2.1.1",
+            "require-main-filename": "1.0.1",
+            "set-blocking": "2.0.0",
+            "string-width": "2.1.1",
+            "which-module": "2.0.0",
+            "y18n": "3.2.1",
+            "yargs-parser": "9.0.2"
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@@ -1923,9 +1923,9 @@
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-                "string-width": "^2.1.1",
-                "strip-ansi": "^4.0.0",
-                "wrap-ansi": "^2.0.0"
+                "string-width": "2.1.1",
+                "strip-ansi": "4.0.0",
+                "wrap-ansi": "2.1.0"
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@@ -1933,7 +1933,7 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "locate-path": "^2.0.0"
+                "locate-path": "2.0.0"
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@@ -1941,8 +1941,8 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "p-locate": "^2.0.0",
-                "path-exists": "^3.0.0"
+                "p-locate": "2.0.0",
+                "path-exists": "3.0.0"
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@@ -1950,7 +1950,7 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "p-try": "^1.0.0"
+                "p-try": "1.0.0"
               }
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@@ -1958,7 +1958,7 @@
               "bundled": true,
               "dev": true,
               "requires": {
-                "p-limit": "^1.1.0"
+                "p-limit": "1.3.0"
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@@ -1973,7 +1973,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "camelcase": "^4.1.0"
+            "camelcase": "4.1.0"
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@@ -1996,7 +1996,7 @@
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       "requires": {
-        "bignumber.js": "^7.2.1"
+        "bignumber.js": "7.2.1"
       }
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     "once": {
@@ -2005,7 +2005,7 @@
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
       "dev": true,
       "requires": {
-        "wrappy": "1"
+        "wrappy": "1.0.2"
       }
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     "path-is-absolute": {
@@ -2062,26 +2062,26 @@
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       "dev": true,
       "requires": {
-        "aws-sign2": "~0.7.0",
-        "aws4": "^1.8.0",
-        "caseless": "~0.12.0",
-        "combined-stream": "~1.0.6",
-        "extend": "~3.0.2",
-        "forever-agent": "~0.6.1",
-        "form-data": "~2.3.2",
-        "har-validator": "~5.1.0",
-        "http-signature": "~1.2.0",
-        "is-typedarray": "~1.0.0",
-        "isstream": "~0.1.2",
-        "json-stringify-safe": "~5.0.1",
-        "mime-types": "~2.1.19",
-        "oauth-sign": "~0.9.0",
-        "performance-now": "^2.1.0",
-        "qs": "~6.5.2",
-        "safe-buffer": "^5.1.2",
-        "tough-cookie": "~2.4.3",
-        "tunnel-agent": "^0.6.0",
-        "uuid": "^3.3.2"
+        "aws-sign2": "0.7.0",
+        "aws4": "1.8.0",
+        "caseless": "0.12.0",
+        "combined-stream": "1.0.7",
+        "extend": "3.0.2",
+        "forever-agent": "0.6.1",
+        "form-data": "2.3.3",
+        "har-validator": "5.1.0",
+        "http-signature": "1.2.0",
+        "is-typedarray": "1.0.0",
+        "isstream": "0.1.2",
+        "json-stringify-safe": "5.0.1",
+        "mime-types": "2.1.21",
+        "oauth-sign": "0.9.0",
+        "performance-now": "2.1.0",
+        "qs": "6.5.2",
+        "safe-buffer": "5.1.2",
+        "tough-cookie": "2.4.3",
+        "tunnel-agent": "0.6.0",
+        "uuid": "3.3.2"
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@@ -2090,7 +2090,7 @@
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       "dev": true,
       "requires": {
-        "path-parse": "^1.0.5"
+        "path-parse": "1.0.6"
       }
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@@ -2118,13 +2118,13 @@
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-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.9.tgz",
-      "integrity": "sha512-gR6Rw4MvUlYy83vP0vxoVNzM6t8MUXqNuRsuBmBHQDu1Fh6X015FrLdgoDKcNdkwGubozq0P4N0Q37UyFVr1EA==",
+      "version": "0.5.10",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.10.tgz",
+      "integrity": "sha512-YfQ3tQFTK/yzlGJuX8pTwa4tifQj4QS2Mj7UegOu8jAz59MqIiMGPXxQhVQiIMNzayuUSF/jEuVnfFF5JqybmQ==",
       "dev": true,
       "requires": {
-        "buffer-from": "^1.0.0",
-        "source-map": "^0.6.0"
+        "buffer-from": "1.1.1",
+        "source-map": "0.6.1"
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@@ -2147,15 +2147,15 @@
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       "dev": true,
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-        "asn1": "~0.2.3",
-        "assert-plus": "^1.0.0",
-        "bcrypt-pbkdf": "^1.0.0",
-        "dashdash": "^1.12.0",
-        "ecc-jsbn": "~0.1.1",
-        "getpass": "^0.1.1",
-        "jsbn": "~0.1.0",
-        "safer-buffer": "^2.0.2",
-        "tweetnacl": "~0.14.0"
+        "asn1": "0.2.4",
+        "assert-plus": "1.0.0",
+        "bcrypt-pbkdf": "1.0.2",
+        "dashdash": "1.14.1",
+        "ecc-jsbn": "0.1.2",
+        "getpass": "0.1.7",
+        "jsbn": "0.1.1",
+        "safer-buffer": "2.1.2",
+        "tweetnacl": "0.14.5"
       }
     },
     "strip-ansi": {
@@ -2164,7 +2164,7 @@
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
       "dev": true,
       "requires": {
-        "ansi-regex": "^2.0.0"
+        "ansi-regex": "2.1.1"
       }
     },
     "supports-color": {
@@ -2173,7 +2173,7 @@
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       "dev": true,
       "requires": {
-        "has-flag": "^3.0.0"
+        "has-flag": "3.0.0"
       }
     },
     "to-fast-properties": {
@@ -2188,8 +2188,8 @@
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       "dev": true,
       "requires": {
-        "psl": "^1.1.24",
-        "punycode": "^1.4.1"
+        "psl": "1.1.29",
+        "punycode": "1.4.1"
       }
     },
     "trim-right": {
@@ -2199,27 +2199,16 @@
       "dev": true
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-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-7.0.1.tgz",
-      "integrity": "sha512-BVwVbPJRspzNh2yfslyT1PSbl5uIk03EZlb493RKHN4qej/D06n1cEhjlOJG69oFsE7OT8XjpTUcYf6pKTLMhw==",
+      "version": "8.0.3",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-8.0.3.tgz",
+      "integrity": "sha512-2qayBA4vdtVRuDo11DEFSsD/SFsBXQBRZZhbRGSIkmYmVkWjULn/GGMdG10KVqkaGndljfaTD8dKjWgcejO8YA==",
       "dev": true,
       "requires": {
-        "arrify": "^1.0.0",
-        "buffer-from": "^1.1.0",
-        "diff": "^3.1.0",
-        "make-error": "^1.1.1",
-        "minimist": "^1.2.0",
-        "mkdirp": "^0.5.1",
-        "source-map-support": "^0.5.6",
-        "yn": "^2.0.0"
-      },
-      "dependencies": {
-        "minimist": {
-          "version": "1.2.0",
-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
-          "dev": true
-        }
+        "arg": "4.1.0",
+        "diff": "3.5.0",
+        "make-error": "1.3.5",
+        "source-map-support": "0.5.10",
+        "yn": "3.0.0"
       }
     },
     "tslib": {
@@ -2234,18 +2223,18 @@
       "integrity": "sha1-mPMMAurjzecAYgHkwzywi0hYHu0=",
       "dev": true,
       "requires": {
-        "babel-code-frame": "^6.22.0",
-        "builtin-modules": "^1.1.1",
-        "chalk": "^2.3.0",
-        "commander": "^2.12.1",
-        "diff": "^3.2.0",
-        "glob": "^7.1.1",
-        "js-yaml": "^3.7.0",
-        "minimatch": "^3.0.4",
-        "resolve": "^1.3.2",
-        "semver": "^5.3.0",
-        "tslib": "^1.8.0",
-        "tsutils": "^2.27.2"
+        "babel-code-frame": "6.26.0",
+        "builtin-modules": "1.1.1",
+        "chalk": "2.4.1",
+        "commander": "2.15.1",
+        "diff": "3.5.0",
+        "glob": "7.1.2",
+        "js-yaml": "3.12.0",
+        "minimatch": "3.0.4",
+        "resolve": "1.8.1",
+        "semver": "5.6.0",
+        "tslib": "1.9.3",
+        "tsutils": "2.29.0"
       }
     },
     "tslint-config-standard": {
@@ -2254,7 +2243,7 @@
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       "dev": true,
       "requires": {
-        "tslint-eslint-rules": "^5.3.1"
+        "tslint-eslint-rules": "5.4.0"
       }
     },
     "tslint-eslint-rules": {
@@ -2265,7 +2254,7 @@
       "requires": {
         "doctrine": "0.7.2",
         "tslib": "1.9.0",
-        "tsutils": "^3.0.0"
+        "tsutils": "3.2.0"
       },
       "dependencies": {
         "tslib": {
@@ -2280,7 +2269,7 @@
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           "dev": true,
           "requires": {
-            "tslib": "^1.8.1"
+            "tslib": "1.9.0"
           }
         }
       }
@@ -2291,7 +2280,7 @@
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       "dev": true,
       "requires": {
-        "tslib": "^1.8.1"
+        "tslib": "1.9.3"
       }
     },
     "tunnel-agent": {
@@ -2300,7 +2289,7 @@
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "dev": true,
       "requires": {
-        "safe-buffer": "^5.0.1"
+        "safe-buffer": "5.1.2"
       }
     },
     "tweetnacl": {
@@ -2339,9 +2328,9 @@
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "dev": true,
       "requires": {
-        "assert-plus": "^1.0.0",
+        "assert-plus": "1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "^1.2.0"
+        "extsprintf": "1.3.0"
       }
     },
     "wrappy": {
@@ -2351,9 +2340,9 @@
       "dev": true
     },
     "yn": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/yn/-/yn-2.0.0.tgz",
-      "integrity": "sha1-5a2ryKz0CPY4X8dklWhMiOavaJo=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/yn/-/yn-3.0.0.tgz",
+      "integrity": "sha512-+Wo/p5VRfxUgBUGy2j/6KX2mj9AYJWOHuhMjMcbBFc3y54o9/4buK1ksBvuiK01C3kby8DH9lSmJdSxw+4G/2Q==",
       "dev": true
     }
   }
diff --git a/package.json b/package.json
index 0cf3480..8d99e1e 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "codecov": "^3.0.4",
     "mocha": "^5.2.0",
     "nyc": "^13.1.0",
-    "ts-node": "^7.0.1",
+    "ts-node": "^8.0.3",
     "tslint": "^5.11.0",
     "tslint-config-standard": "^8.0.1",
     "typescript": "^3.0.1"