Add PSN Trophies to account manager

The App appears under Account Manager and user can create account.
This information stored in account manager is used instead of shared
preferences for security and to later allow the use of a SyncAdapter.
Create Sync Adapter

The sync adapter is currently triggered manually and downloads the profile and games XML which is stored in a shared preference.
Sync automatically

The user can specify regular sync intervals that the data for games and profile will be downloaded and stored.
Show notifications

Notifications are displayed to the user to show how many trophies have been earned since last sync.
Notification tweaks and fix sync bugs

The notifications are more detailed and start the application when pressed. Sync cycles are only updated when the user changes sync frequency.
Fix sync bug

The update time was being saved as a string instead of a long.
Show stock notification if old xml for trophies doesn't exist

If there is no saved xml for trophies then a notification with the name of the game is shown instead of details about trophies.