- after first character, only suggests bigram data (but doesn't autocomplete)
- after second character, words from dictionary gets rearranged by using bigram
- compatible with old dictionary
- added preference option to disable bigram
Change-Id: Ia8f4e8fa55e797e86d858fd499887cd396388411
Added tests for the dictionary lookup and correction logic on the primary dictionary.
This exercises part of the Suggest class and the native dictionary lookup code.
