[#72] Refactor Documents validation and validate date format
[#72] Add date pickers and change date format

We're now using the format "01 Jan 2014" everywhere. It's bad because we're not
translating the month names, but I think it's better than using something
dubious like "01/01/2014"
Update minified aquarium.js and add uglify/browserify dependencies
[#72] Re-enable validation when editing document
[#72] Adds "Expected Date of Publication" to docs