Remove some unused controllers
Change user slugs to usernames
Cleanup the base repo interface
Work on the Gravatar stuff
Inject the user repo into the item repo
Cleanup some repos
User repo cleanup
Remove some unnecessary using statements
Remove a link to edit the account
Update the service providers
Add the Gravatar alias
Remove some files
Migration updates

Remove the indices and add the ability for admins to shut off an xtra
Update the ignore file
Update the icomoon font
Use the current user object instead of Auth
Make sure user uploaded preview images show
Tweak some of the routes
Update the intro text for item creation
Item presenter updates