Addresses issue 4clojure#86

Mostly some improvements to ajax UI, and minor other UX stuff.

AJAXy frontend for code submission, and new sort order for users page

Merge branch '1.0.5'

Mostly performance improvements

Fix seq collection

Merge branch 'hotfix/1.0.2'

Minor bugfix from 1.0.0

Merge branch 'release/1.0.0' into develop

Merge commit 'v0.3.1'