Bump play billing to 1.0.1

Author: gstepniewski-google

playbilling/build.gradle

@@ -17,7 +17,7 @@
 apply plugin: 'com.android.library'
 apply plugin: 'maven-publish'
 
-def VERSION = "1.0.0-alpha11";
+def VERSION = "1.0.1";
 
 android {
     namespace "com.google.androidbrowserhelper.playbilling"