update version to 2.0.0 for release

Author: cpg

build.gradle

@@ -38,8 +38,8 @@ android {
 
 
     defaultConfig {
-        def versionMajor = 1
-        def versionMinor = 4
+        def versionMajor = 2
+        def versionMinor = 0
         def versionPatch = 0
 
         versionName buildVersionName(versionMajor, versionMinor, versionPatch)