refs #5271 - prepare comps for el7 builds

also remove f19 comps files and clean out katello-cli references
Merge pull request #4599 from jlsherrill/5271-comps

refs #5271 - prepare comps for el7 builds
Fixes #7120/BZ980113: use BS3 on dashboard to make it responsive.

The dashboard was displaying badly in smaller browsers.  This
commit reworks the dashboard to use bootstrap 3 classes and
thus makes it responsive.

http://projects.theforeman.org/issues/7120
https://bugzilla.redhat.com/show_bug.cgi?id=980113