Added Rspec and run rspec:install
Added first spec/test to Video model
Added spec/test to Category model, and tested associations on Category and Video
changed Video model, name attribute, to :title, added validation of presence in Video to :title, :description
Video model now has test/specs for presence validation of :title, :description
Changed .should to expect synthax in Video, Category tests
Deleted a useless line in category_spec
Merge pull request #1 from jsanchezsilvera/week1-assignments

Week1 assignments