Merge pull request #6 from mutualcore/user_sign_up

Merge pull request #5 from mutualcore/markdown

added markdown to wikis

Merge pull request #4 from mutualcore/private_wikis

made private wikis public on user downgrade

Merge pull request #3 from mutualcore/upgrade_account

Added upgrade/downgrade account function using stripe

Merge pull request #2 from mutualcore/user_roles

Added user roles with pundit and default to standard

Merge pull request #1 from mutualcore/wiki_CRUD

Completed CRUD actions/views for wikis

First commit and user sign-up