Initial add of yum cataloger.
bare-bones unit test for yum cataloger.
move cataloger test to proper location.
Add cataloger plugins.
update to work with changed cataloger API and conduit.
fix unit cataloger unit test.
Merge branch 'master' into cataloger
fix unit test for changed get_locator(); docstrings.
changed unit test to stop at the mocked manager.
Merge pull request #400 from pulp/cataloger

YUM Cataloger