Fixing CSS whitespace issues.
Adding a map of the sites
Removing the reference document sites.json.

This document will be available only at http://api.nasqueron.org/sites.json,
and redirected to there through the server configuration, to avoid to maintain
twice this file.
Keyboard shorcuts and keyboard navigation

Implements keyboard shorcuts with MouseTrap library.

Reads Nasqueron sites map to provide g <site shorcut key> shorcuts to
directly go to a Nasqueron site.

Uses http://impressivewebs.github.io/QuestionMark.js/ to offer an
helper dialog.