Revert "Deactivate the services associated with SyncAdapter"

This reverts commit ff88ebcda27f381c0c4ba8df15c0ff092394a12c.
Try using the applicationContext instead of the service
Pull provider authority into strings resource
Always prefer using getApplicationContext

Apropos of the "Context, what context?"
Move all declarations into the application tag

Stuff works less well when the XML is poorly formed.
Merge pull request #18 from RadicalZephyr/master

Clean up and activate the SyncAdapter code