We need revised scoring test because dictionary look up algorithm has
been changed significantly since this SuggestTests was made.
Change-Id: I69d527a6bfa24ed0dc189fddad1afab0566c6eb8
- 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