Some UI enhancements
* Add user link to top_nav for admins or masquerading admins
* Add cancel masquerade to top_nav for masquerading users
* Add name of collection to collection items page
* Add link to edit collection on collection items page
* Changed Add Admin to Add User
* Moved Add User button to top to on user index match style on item index
* Moved New Collection button to top of index like on Items and Users Index
Merge pull request #3 from ndlib/flow-enhancements

Some UI enhancements
added class to model the item json.
change item json to return a hash
change to return a hash and act more like a service
fix the controller to call the new json fields.
added class to model the item json.
change item json to return a hash
change to return a hash and act more like a service
fix the controller to call the new json fields.
Merge branch 'item-json' of https://github.com/ndlib/honeycomb into item-json
Merge pull request #4 from ndlib/item-json

Add jsonapi.org json for index and show.
bump rails version.
update rails
add original file name into search
generate a better title from the filename
update css to have a new error icon and to remove the cancel button on success
fix error when form was submitted to quickly.
Refactoring user class to add separate service helpers to map user fields from api, set, and revoke admin.
Merge remote-tracking branch 'origin/master'