Bug 27661: (QA follow-up) Use bootstrap classes

Bug 27661: (QA follow-up) Use bootstrap classes

This patch removes the local status_* css rules in favour of using the
bg-* rules that are shipped with the bootstrap version we are using and
then updates the relevant lines in the template to use those classes.

We also update the default table styling which adds background color to
the odd table rows so that our local classes take precidence.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>