Added user-level rudiementary submission capabilities, much more to come.
Some layout changes to the challenge detail
Refactored the challenge detail screen, created ability to comment on an entry
Merged Haval's master
Updated styling on some of the editables
Added rudimentary screenshot submission. no resizing yet.
Added screenshot thumbnailing
Added crappy performance screenshot chooser for a challenge's entry list
Made screenshot a link for better clickability
Merge branch 'master' of https://github.com/mavroskardia/codechallenge