Kill 'clic' from dockertest/images & container

*  Neither of these subclasses is a true external-interface
   extension and will lead to combersome interface in the
   future.  Since it's used by only a single test, just
   move it there.

*  Fixed up unittests

*  Added TODO's to fix this missing functionality in more
   general way later.

*  Double-checked there are no references in docs

Signed-off-by: Chris Evich <cevich@redhat.com>