Remove turbolinks references in head tags
Add create action logic
Add radio buttons for setting private or public goal
Add default of private and make text box for description bigger
Change name of column from public to visibility
Change boolean radion name to visibility as opposed to public
Show whether a goal is public or private
Permit visibility attribute in strong params
Fix method call for finding goal's visibility
Show category that goal belongs to
Add new and create routes for categories
Add blank new and create actions
Set up new category ivar for new action
Render header and add form for creating a new category
Show all errors on the given object
Replace error code with shared errors partial
Render shared errors partial
Add logic for creating a new category
Add the first user as the default creator for a goal until authentication done
Display all flash messages