Resolve issues with Aloha and editable content
use correct field for revised date
Fix issue where a model's reference would change after saving
Merge branch 'editing' into fixes

Conflicts:
	src/scripts/helpers/backbone/views/editable.coffee
	src/scripts/modules/media/body/body.coffee
Calculate 'value' in _makeUneditable() method
Merge pull request #418 from Connexions/fixes

EDITING: Fix Saving Multiple Times
adding back special code for ignoring nested editables
icons are no longer question marks
Merge pull request #420 from Connexions/workspace-icons

Workspace icons are no longer question marks
parse the response from the POST
Remove "Miscellaneous" from workspace.

Fixes #423
Merge pull request #425 from Connexions/editing-new-books

EDITING: new books don't show up as subcollections in the workspace
Merge pull request #426 from Connexions/workspace-misc

EDITING: Remove "Miscellaneous" from workspace.
Merge branch 'editing' into editing-workspace-revised-date
add derived status if content was derived
set the background of draft content
Merge pull request #430 from Connexions/workspace-derived

WIP Workspace add derived status if content was derived
Remove Sign Up link
allow editing below existing content
drafts edit by default, replace browse with preview