Change JSON time format to 014-11-27T14:23:28.044Z.

Fixes #136.

__Note__: For the backend this is backwards compatible as we read the
old format as well but for the JSON API this breaks the format.
Merge pull request #143 from mvitz/136-fix-json-datetime-format

Change JSON time format to 014-11-27T14:23:28.044Z.
Refactor info page into own namespace.
Refactor too-long page into own namespace.
Add separate namespaces for routes and html layouts.
Only views depends on hiccup now.
Move default layout from common to layout namespace.
Increase usage of routes namespace.
Fix styling and some minor warnings from kibit.