Upgrade Android gradle plugin to latest: 0.12, remove dependency to Android JAR
Merge pull request #5 from mgrzechocinski/topic/nbs_upgrade

Upgrade gradle plugin to latest: 0.12, remove dependency to Android JAR
Do not use android-apt plugin

- make dependency to :mywebio module as provided
- suppress lint 'InvalidPackage' error. Needed for now, even the best do the same: look at ButterKnife ;)