Remove ItemSharesController#new
Add Jasmine Spec to test presence of Collisterator
Add ItemSharesControllerSpec
Add validation to ListType on name
Add ListTypesController specs

 - Renamed ListTypesControllerSpec
 - Add shared examples to list types controller
Add ListTypeCreator
Add examples to ListTypesControllerSpec
Removed unnecessary comments from routes file
Remove unnecessary extra authorization
Add examples for ListTypesController