LDEV-1229: Add a unique key on the activity columns in transition. Somehow we are ending up with duplicate rows in the database, which stops the design being opened. This will stop the bad data being written to the database.
Updated how jabber room names are allocated.When a chat tool session is created, it is assigned a jabber room name.A 'room_created' boolean field was added to the lachat11_session table. This indicated whether the room has been created on the jabber server.
LDEV-1051 and LDEV-1198: Fixed the break out of frames logic for parallels at the end of a design and inside an optional activity. Changing flag for waiting from boolean to a numeric flag.
