Better display for user names in admin
Merge pull request #63 from caktus/feature/63-user-names

User names in user picklists
Fixed #84, add conditional to not display sign up link in sidebar on signup page
#116, gondor bits removal
Fixing background image in footer on retina displays.
Merge branch 'develop' of github.com:caktus/pycon into develop
Merge branch 'develop' into staging