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>...

refs #3254 - Using the two-pane layout in some pages.

Feature #2368 - form helpers, exceptions and fixes

Feature #2368 - i18n extracting and locale rake task

Feature #2368 - i18n extracting strings

Added gettext calls to the usergroups and roles pages.

Note, this patch does not include an update to the strings file. This will allow patches to be submitted without colliding with each other.
To regenerate the strings file, run rake gettext:find.

fix minor css classes declaration.

updates UI to bootstrap v2

fixes #1333 -Destroy vs Delete inconsitent naming

Signed-off-by: Florian Koch <florian.koch1981@googlemail.com>

WIP rails3 migration