Prevent Back key behavior

Send backkey character from preIme()
Add actionbar key mapping
Add minus button action
Add ? Icon
Add minus icon
Add IME shortcuts
Add toggle keyboard escape sequence
Add IME escape sequence
Add hardware acceleration escape sequence
Add Alt buffer escape sequence
Add shutdown escape sequence (adhoc)
Add dev escape sequence (adhoc)
Fix select text two rows offset (hotfix)
Fix composing text drawing (hotfix)
Tap on a URL causes a crash (hotfix)
Change default for Android 4.4+ startup time latency (hotfix)
Improved Japanese translation
Change preference type
Change default input type
Change defaults