Bug 900906 - [Keyboard] Wrap the pinyin IME engine with web worker
Bug 906617 - Change Gaia keyboard app to use the new composition methods in IME WebAPI
Bug 917732 - [Keyboard] Candidate panel displays wrong data when clicking candidate-panel-toggle-button and space key at the same time
Bug 913397 - [Keyboard] Make keyboard app support 1.5x graphics