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

Contributions from:
* Daniel Lobato <elobatocs@gmail.com>
* Joseph Magen <jmagen@redhat.com>
* Tom McKay <thomasmckay@redhat.com>
* Greg Sutcliffe <gsutclif@redhat.com>
* Dominic Cleal <dcleal@redhat.com>
i18n - extracting new, updating rails, pulling from tx
Fixes #4536 - store fix_db_cache setting values correctly as YAML
Fixes #4226: add a Rake task for plugins that compiles their assets into core assets pipeline
fixes #4245 - return HTTP body for oVirt SSL CA certificate
fixes #3767 - add new host to hosts menu
fixes #4539 - changed os minor attribute to not required
Fixes #4353 - plugins don't create permissions until DB is migrated
fixes #3001 - Facts searchable by both host id and name
Revert "fixes #3821 Plugin menus are lost after page refresh in development"

This reverts commit 9ef39dd6a437f75fdccaa619148a5a08d14de969.

TEMPORARY
fixes #3506 - adding puppet.conf unattended action