Refactored get_access_token methods to use OAuth#overload_as_hash to make strings respond to #[] according to the given hashes
Refactored get_access_token methods to use OAuth#overload_as_hash to make strings respond to #[] according to the given hashes

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