stop using mptt.register and deprecated/unused AlreadyRegistered exception in sample model
fixing docs to include the new CK editor
Merge pull request #2154 from crooksey/develop

fixing docs to include the new CK editor
Added documentation for accessing the toolbar through views
Formatting + changed to type to modal
formatting + changed some types back
Merge pull request #2155 from Chive/develop

Added documentation for accessing the toolbar through views
fixes absolute linking to images in css files
fixes the absolute linking in the sass files as well
Merge pull request #2157 from andrewschoen/fix/cssabsolutelinks

fixes absolute linking to images in css files
Merge pull request #2146 from koordinates/develop

stop using mptt.register and deprecated/unused AlreadyRegistered exception in sample model
Merge commit '931bb45a9ec871134e807c04ddd9b4119cdecc1b' into develop

Conflicts:
	cms/static/cms/css/plugins/cms.toolbar.css