Set version to 1.2.0-SNAPSHOT
Set version to 1.2.0-SNAPSHOT

There has been a lot of changes that merits 1.2.0 instead of 1.1.1.

Signed-off-by: Ealden Esto E. Escanan <ff27627daef6b3172da4425363457b1137a9e29e@gmail.com>

jvoegele/gradle-android-plugin,jvoegele/gradle-android-plugin,t3t5u/gradle-android-plugin,t3t5u/gradle-android-plugin