release v3.6.6

release v3.6.5

Merge remote-tracking branch 'github/master'

release v3.6.3

release v3.6.2

release v3.6.1

release v3.6

release v3.5

Fix RV's bug(https://code.google.com/p/android/issues/detail?id=77846)

Bug fixed: addAll(int location, List<T> items).