Added db close and get and assign User ID helper methods
Increased spacer height to give visual separation between menu
Moved lastMessageID outside of the loop

Needed to be initialised to -1 even if we have no messages to loop
through
FIX: Delegation logic fixed so it gets the correct list of people
FIX: Preview can't be null

Moved close to parent class for reuse in EmailArchiver
Moved to MessageArchiver parent class inline with PhoneReader