removed comments and white space from Gemfile
included foundation gem, bundled, and ran rails g foundation:install
created nav bar
created Category model and added 'shoulda-matchers' gem
added activeadmin gem and dependencies. activeadmin must be tracking github branch.
added divise gem in order to install activeadmin.
added category model to active admin
added fabricator gem and created feature test for admin login via activeadmin
added permission to add category to admin
made category list in nav bar dynamic