Bumped gem to rc2.
Bumped gem to rc2.

Loke155/koala,hendricius/koala,morgoth/koala,supriyantomaftuh/koala,lucaskds/koala,adparlor/koala,christer155/koala,chrisortman/koala,lisa-lina/koala,sideci-sample/sideci-sample-koala,arsduo/koala,sancopanco/koala,samnang/koala,mateusrevoredo/koala