Fixed up intent MIME-types, add Accounts menu, clean unused.

Cleaned up <intent-filter> entries for INSERT_OR_EDIT and
EDIT to watch for more MIME-types after legacy change-over.

Finished clean-up from display groups by removing deprecated
edit sync groups UI, and unused menu.  Changed
ContactsListActivity to use XML-based menus and added an
"Accounts" link that replaces the edit sync groups.

Finally, hooked up the INSERT case to read extras from any
incoming intents to help with SHOW_OR_CREATE intent testing.
9 files changed