Utilize cketti's AutoSyncHelper in order to provide a way to make K-9
Mail obey the global Auto-sync setting. K-9 Mail doesn't obey the
Auto-sync setting by default because K-9 Mail isn't listed as one of
the listed applications.
Automatically build jar file for external applications.
Create convenience functions in K9RemoteControl so that external
applications do not need to know the details of handling the Intents
and broadcasts.
Send a permission string in the broadcasts so that unauthorized
applications cannot intercept communication to authorized
applications, such as K-9 Mail.
