Finish chpt. 6 execises.
Add Factory girl to Test in Gemfile
Add spec/factories.rb to test factories
Add test for user factory
Add gravatars to profile page
Add Sass
Add test for valid/invalid user signup
Fix in user_pages_spec.rb, but test not passing still
Working on signup form
Disallow invalid parameters in user signup
Doing more stuff...
stuffff
Fix erb bug in application.html.erb