Fixing the 'Fetch Email' features

Reviewed By: Peter Rotich 04/26/12

Correcting the if-statement for message delete and move.

'msg_id' is no longer the field name in TICKET_EMAIL_INFO: changed to 'message_id'. 
TICKE_THREAD_TABLE was corrected to TICKET_THREAD_TABLE.

Updating main.inc.php: File did not include a define statement for TICKET_EMAIL_INFO_TABLE used by include/class.ticket.php

Updating include/class.config.php: canFetchMail was not checking for the proper database field name in the config table.

SetupWizard

Feature/clickable urls

Bug/reply email

Dst setting

Reply posting is borked

Reviewed By: Peter Rotich 04/23/12

Add support for marking previous events as annulled

Reviewed By: Peter Rotich 04/23/12

Feature/kelli scp kb layout cleanup

Reviews By: Peter Rotich 04/23/12

Add the ability of revoking previous ticket state tracking events when new
events are logged for the same ticket. This will allow, for instance, the
ability to revert the 'closed' state of a ticket when the ticket is
reopened.

For statistics tracking, a user could configure whether or not the events
should be counted for each event tracked or just the non-annulled events.
For instance, if a ticket is closed and reopened several times, only the
very last closed event should count toward the statistics for the ticket.
Therefore, when a ticket is reopened, previous closed events should be
marked as annulled.

error creating new ticket with notification to department members

Reviewed By: Peter Rotich 04/23/12

Feature/client side kb layout

Reviewed By: Peter Rotich 04/23/12

Support continuous database updates / migration 
Advanced search form
Merge message, response, and notes tables into one ticket thread table (which will support more extensible message options in the future)
Add ticket state event tracking, which will be used for reporting

Reviewed-by: Jared Hancock