AA Info pages

NOTE: this is not a finished PR at the moment, this should be a discussion base at the moment.

Inspired by the Rails Routes (http://localhost:3000/rails/info/routes) and Rails Mailer (http://localhost:3000/rails/mailers) pages, I have build a AA Infopage with use AA himself to show informations about the AA part of the Railsapp.

Possible informations are:
* List of all Icons (already implemented)