b/9566150
- Install PublicPreferenceActivity
- Create AccountServerSettingsActivity to contain all the crazy
logic we don't want in AccountSettings
- Add restoreAccountWithAddress to Account
- Refactor almost everything out of AccountSettings
- Tidy the QuickResponse fragment
- Majorly refactor the AccountSettingsFragment to decouple it from
the activity, and make it save settings immediately instead of
when pausing
- Move login warning dialog to AccountSettingsFragment
- Tweak HeadlessAccountSettingsLoader
Change-Id: Ie69181d968b9c3e5940cfef9690b1f5c70e21aa8