Added home link and redirect when not specifying a valid page.
Changed "Foyer" to "Home"
Removed currentpage code, now useless.
Added PHP doc for getParams()
Added mimetype for PNG.
shortname is a required key of the navigation array.
Removed unnecessary currentpage method
Temporarily removed imminent
Renamed "welcome" to "home".
Added 'shortname' keys to navigation array
Added stub methods for portfolio and project pages.