mitukiii/cha — pull request #1 by sue445 (2014-11-27 15:33:10+00:00)
Title: Support force option to Cha::API#room_messages

Support new `force` option of new API `GET /rooms/{room_id}/messages`

# ref
* http://developer.chatwork.com/ja/changelogs.html
* http://developer.chatwork.com/ja/endpoint_rooms.html#GET-rooms-room_id-messages