Manually merge with ed3b9e7ed0e083cd1c587c160d6a63440b29fad8 v1.0.1 commit from Mozillaorg:
- Modified Video App to fully support HIDPI resolution, fixed Youtube landscape issue.
- Modified inputarea style for greater fonts and fix sms send button.
- Added missed @2x files.
- Removed caldav hacks from PDI version.
- Not merged Sound Manager.