Made the cloning aware of Open Atrium, including:

 * Space and section heirarchy.
 * Difference between Space and Group.
 * Colorizer settings.
 * OG variables.
 * OG roles and permissions.

Also, adds "jump links" so you can quickly create Spaces/Sections of a particular type and easily 'Create a Space Type from this Space'.
Merge pull request #24 from dsnopek/oa_clone-part-2

Cloning in Open Atrium (part 2!)
Remove override from oa_users
Coder tweaks
Merge branch '7.x-2.x' of github.com:phase2/oa_core into 7.x-2.x
Issue #2194943 by cgove: HTML errors from OA message river abbreviation.
Issue #2196309 by antonyanimator: Error when disabling site banner.
Issue #2198103 by maustyle: Admin left bar on Chrome, Firefox -Windows not showing.
Issue #2198481 by phKU: Htmlmail module error.
Issue #2201103 by Dijup Tuladhar: Media file upload warning .
Issue #2203395 by Dave Kopecek: Chosen does not work on fresh install.
Adjust space and section descriptions