added classes-filter to the puppet classes selection page. fixed the selected classes sort.

also fixes #1675

renamed the parameter queuename to progress_report_id to reflect the fact that
we now have multiple queues in a single progress report.

title action buttons as a group.

moved to bootstrap 2.04

fixes #1389 Add bookmark support for pages which are not in the main dialog

fixes an incorrect warning about non assigned templates per OS

smart vars looks sharper.

fixes #1572

fixes #1669 - epel is now a snippet.

This adds another method to install the epel repo, as a snippet,
allowing users to customly change the url, in case that it doesn't fit
their needs or if the url changes again.

to use, simple use:

<%= snippet "epel" %>

fixes #1605 - typo thier