FIXED: ManageContactsActivity auto update

ManageContactsActivity, the activity for handling key exchanges as well as any modifications to contacts will now update upon receiving/sending a successful key exchange(s) (where 1 or more contact is now considered trusted). The contact will change lists upon receiving/sending the message (if key exchange is set to auto exchange)
Merge branch 'master' of github.com:tinfoilhat/tinfoil-sms