Fixes #6391/BZ1091844 - use complete links for content search.

The links for content search were missing part of the required
structure for the "back to results" button to function correctly.

http://projects.theforeman.org/issues/6391
https://bugzilla.redhat.com/show_bug.cgi?id=1091844
Merge pull request #4394 from waldenraines/6391

Fixes #6391/BZ1091844 - use complete links for content search.