Bug 35616: Update catalog concerns to set/filter on source

Bug 35616: Update catalog concerns to set/filter on source

This patch updates the catalog concerns feature to respect the new
'source' field in the API.  We both set the source for new ticket
submissions and use it for filtering in the corresponding display
tables.

To test:
1) Nothing should noticably change here.. follow the test plan for bug
   31028 and confirm all continues to work as described there.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>