Make TracCmd a new style class
Nicer display in case the ticket_split command is aborted
Added the _open_in_browser method and make use of it in do_web
Rename do_web into do_ticket_web to have coherent names
Added the do_ticket_query_web and do_wiki_web commands
In _ticket_edit_batch, handle the abort use case
Notify when creating a ticket
Notify when updating a ticket
When creating a son ticket, the reporter defaults to self.me
The ticket_get method now supports the #... format
The temporary file to write when closing a ticket now contains the number of the ticket.

This is useful when several tickets are closed at the same time
Remove mistakenly introduced pdb usage
Prefer the use of putAttachmentEx with explicit basename
In ticket_split, if some children have been created, edit the parent to set its estimated time to 0
Added the sum attribute to _ticket_remaining_time to indicate whether the whole hierarchy is to take into account or not
Added some documentation