Moved RT gather credentials to inside class.

Can also give as args.
Valid filename.
Added get all tickets function + no of unowned.
Made bot broadcast every hour number of tickets.
Callback not fallback.
Can now post status to group chat.
Interval should be hourly.
Added general search tickets method by query.
Better broadcast message.
Can choose wheter to broadcast queue status.
Bugfixes.
Should write newline at end so easier to edit.