Rename fog.images.edit.js to fog.image.edit.js. Add the starting components to allow images to be assigned to multiple groups.  Specifically this will be used for replication so you can replicate images across the group's nodes and send the image to other groups as well if needed.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@2510 71f96598-fa45-0410-b640-bcd6f8691b32
Merge svn with dev-branch