* Put most setup parameters in services.xml (at a later date
these can be obtained directly from services, but we're not
in a position to modify Exchange until next OS release)
* Make more parts of setup reference service information rather
than directly refer to specific protocols
* Base account type buttons on declared services
* Continue the effort to make Stores obsolete
Change-Id: I50d08f3c0676e606b6b6c09fc22571ee5a7690e6
