OR-802 Use messages `parsers` property

* Add `bower` dependencies.
* Add new modules in `app.js` and `index.jade`.
* Update `whatsup` template with the new directive.
* Add frontend tests
Merge pull request #610 in OR/rse from ~RPIGNOLET/rse:OR-802 to master

* commit 'd42d109fc6b9de7d34bf398c6269c14a5d361f1d':
  OR-802 Use messages `parsers` property