removed proguard on library gradle
- its no longer supported on new gradle for android
- open source library, no need for obfuscation
removed proguard on library gradle
- its no longer supported on new gradle for android
- open source library, no need for obfuscation
Merge branch 'upstream_master'

* upstream_master:
  removed proguard on library gradle - its no longer supported on new gradle for android - open source library, no need for obfuscation