publish or unpublish on media object show page
adding publish/unpublish button to preview page
publish! and unpublish! methods
cleaning this up and refactoring it
Merge pull request #16 from variations-on-video/VOV-989

Vov 989
Prototype for access control
VOV-996: access control step grant additional users/groups read access
VOV-996: user/group additions and deletions should be singular instead of bulk
Refining access control view
Add tests for Chris' functions
Refining the interface for access control to include ability to add users or groups for each item individually
Adding a new user or group as an exception no longer advances to the next step in the workflow automatically
Adding a new user or group as an exception no longer advances to the next step in the workflow automatically (redux)
VOV-586: #groups -> #group_exceptions and #users -> #user_exceptions
Fix access control step
Chris made a small change and now I have to backup my half baked solution to the delete problem
You can now do a batch delete action on the list of groups and users instead of having to select them one by one
Parameter now is structured to support multiple selections instead of the last value
Fix user/group deletion
Broke down access control into three forms. Still need to do additional cleanup