Merge pull request #5 from N-Manos/dev

Styled top nav bar, added background image, and fixed tests that broke because of it.
Change production.rb to allow serving of static assets for heroku.
fix for heroku
optimization for heroku
more heroku optimization for styles
adding ci config info
Merge branch 'master' of https://github.com/N-Manos/Portfolio
heroku background image changes
heroku fix
cleaning up gemfile
travis.yml changes
travis.yml deployment info add
Testing codeship
codeship integration
heroku changes
Assets changes for heroku and coveralls dependencies.
Change production.rb to allow serving of static assets for heroku.
Pundit authorization and tests
Merge branch 'master' into dev