Delete message doesn't correctly check permission nor display 'not able'

[dgets]

There needs to be some functionality added to be able to delete messages if you have the appropriate security level, not just if you have ownership of the message. Also sysop, etc... Plus if these conditions are not met right now, it still tells a person that the message is deleted. There needs to be conditional code that'll tell the user what really happened if unable to delete that message.