* [#706] Fix crashes identified by robo tests
- Removed unused xml layouts
- Fixed several xml attributes to be backward compatible
* Reduce number of unnecessary logs in console
* Bump min Android SDK version from 19 to 21
* Bump demo-app minSdk to version 21 too
* Update changelog
Co-authored-by: Carter Jernigan <git@carterjernigan.com>
Move SDK from the root gradle project to its own Gradle module
Move the demo app to be a peer of the SDK
This will simplify integration with CI on Bitrise.