Gradle tools upgrade
Gradle tools upgrade

Upgraded to new version to fix CI.

* What went wrong:
A problem occurred evaluating project ':api-lib'.
> Failed to apply plugin [id 'com.android.library']
   > Could not create plugin of type 'LibraryPlugin'.
      > The android gradle plugin version 2.3.0-beta1 is too old, please update to the latest version.
amardeshbd/android-daily-headlines,amardeshbd/android-daily-headlines