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.
The best-effort memory cleaning logic for MasterSecrets
is no longer accurate, since they are being passed through
both Binder calls as well as Intents, blurring whether an
activity is using a MasterSecret which is a reference to
shared memory in the KeyCachingService or not.
The 1.X Android versions don't have the 2.X VERSION_CODE
symbols, so comparing against them in order to make 1.6
choices will throw runtime exceptions.
