Started down the path of expecting all item types to be subclass.
Removed concepts model, controller and views. Changed a lot of item code to accomodate the change
Fixed Items#update_content
Fixed image uploading for items
Fixed admin item CRUD
Do not show content fields in item settings.
Merge branch 'master' of github.com:GoVeganGo/femur into noconcept

* 'master' of github.com:GoVeganGo/femur:
  Added gitignore line to README
  Added a link to edit page from the page index list
Item views are no longer in a concept dir
Decorate all items in items#index
Use send to get content for items (due to identifier alias and rescue to a safe read
Raise an error when an item does not have an identifier
Only rescue from NoMethodError in item decorator
Added item_class_slug to render prefixes for items controller
Fixed item_path helper
Forgot to add Femur::Item class to the last commit
Fixed a bug with linking to manage items in admin menu
Added links to show and edit item from admin item list
Only show content and settings button for item if those fields exist
Removed new and create for item. Tweaked the workflow to use mercury for create and new
Changed the create new item button to go to the new 'new item' page