Bump version to 0.3

Author: jeehoonkang

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "crossbeam-deque"
-version = "0.1.1"
+version = "0.3.0"
 authors = ["The Crossbeam Project Developers"]
 license = "MIT/Apache-2.0"
 readme = "README.md"
@@ -15,8 +15,8 @@ categories = ["algorithms", "concurrency", "data-structures"]
 travis-ci = { repository = "crossbeam-rs/crossbeam-deque" }
 
 [dependencies]
-crossbeam-epoch = "0.2.0"
+crossbeam-epoch = "0.4.0"
 crossbeam-utils = "0.2.1"
 
 [dev-dependencies]
-rand = "0.3"
+rand = "0.4"