Add wiki collaborator model and migration
Update user model for wiki collaboration.
Update wiki model for wiki collaborations.
Scratch out basic functionality of wiki collaborator feature in wiki show view.
Correct creation of wiki_collaborators object in show method
Update wiki collaborators table to include remove link.
Modify wiki show view to only create collaborator table if wiki has collaborators.
Re-work the user to wiki to collaborators model and supporting code.
Completed wiki collboration features and fixed tests. Sketch out Stripe.