require body for wikis
wikis are public by default. tested authorization of wikis
merge master into this branch to bring it up to date
added collaborator page
users can see wikis in my wikis page
users can only see and edit wikis they created
fixed bug in Wiki.created_by()
can view wiki by selecting it in my wiki list
can add collaborator
passed all tests. only premium users can add collaborator
merge master in to bring the branch up to date
refactor wiki index and collaborator views
mark existing collaborators in edit screen
wiki editing is authenticated
make code clearer
can delete and edit wiki using wiki list
use has_many through to implement many-to-many relationship
collaborators are unique. can be removed from wiki
Merge pull request #4 from bfaguy/add-collaborators

Add collaborators