Merge pull request #114 from colegleason/master

Add Filter tabs to jobfair manager, removes invite link once a company was invited, and removed some old conference landing page code.
Removed hyphens from phone number anchor tag

The phone number tag in the footer used to have hyphens, but I don't believe that is how the 'spec' works
Changed front page slider cover back to bus picture
Merge branch 'master' of github.com:acm-uiuc/liquid