Add ability to delete messages directly when viewing them in the conversation view. Now all views support message delete.
Updated to implement the following when a user is blocked:

*Blockee is removed from blocker address book
*Blockee is placed in Blocker blocked list
*Blockee cannot re-add Blocker to address book until unblocked
*Blocker cannot re-add Blockee to address book until unblocked
*Blocker can edit alias of Blockee user in Blocker address book
*When Blocker removes Blockee from address book they will have to manually
re-add to address book