fixes #812 - new permissions model, user group role and nest support, role filters for better granularity

• Daniel Lobato <elobatocs@gmail.com>
• Joseph Magen <jmagen@redhat.com>
• Tom McKay <thomasmckay@redhat.com>
• Greg Sutcliffe <gsutclif@redhat.com>...

fixes #4015 - support oVirt using templates like images

fixes #3912 - add inheritance for locations / organizations

fixes #4333 - added multi-select-rails gem

Add header menu navigation

fixes #4220 dashboard and report-show pages chart-frame is not in place.

refs #2816: Prevent diff viewer on report page from overflowing to be outside the parent modal

fixes #4120 - fix border-collapse:collapse tables in Firefox with disappearing lines

fixes #4189 - Facts charts are not rendered

i18n - extracting new, updating rails, pulling from tx