Added sdk-manager-plugin support so that the Android SDK installs
automatically
Updated install documentation
Merge pull request #1336 from garvankeeley/dev

bump to 1.5.3
Merge pull request #1328 from crankycoder/features/1162-android-sdk-setup

Android SDK automatic installation support added
update Gradle to version 1.0.0
Merge pull request #1337 from cascheberg/fix

Update Gradle to version 1.0.0