On platforms (API >= 11) that support receiving click events within
a notification, we change the notification format so that users
can "lock" TextSecure with a click.
For all platforms, we change the notification icon in the status
bar from a "lock" to an "unlock," to better reflect the situation.
This is all part of the master plan for eliminating the passphrase
timeout option.
1) Change all instances which use concatenation to build strings
with variables in them to use string formatting instead.
2) Extract all string literals from layouts and menus into strings.xml
3) Extract all string literals from code into strings.xml
1) Move to Fragments for the list view.
2) Switch to CursorLoader from my jankey self-managed cursor.
3) Add session security logic to the ActionBar.
4) Fix colors to be less ugly.
1. New look for quick contact badges.
2. No more unread indicator, replace with bolded text.
3. Style message count with color rather than parens.
4. Remove "New Message" item, add as item in action bar instead.
