[fix] Make it work for SBT-Android 0.7
[fix] Bumped the default API level to 16
Added test subproject
Merge remote-tracking branch 'origin/sbt-android-0.7'

Conflicts:
	src/main/g8/default.properties
	src/main/g8/project/Build.scala
	src/main/g8/project/plugins.sbt