Login system implemented 1/2
Made the login function and the settings function
Peter - change userdash and remove readme.rdoc

In this commit the wireframes for the new userdashboard are added (1/3)
and the readme.rdoc get's deleted to be replaced by the readme.md
new files in this commit are users.js with a small command to load a
page on div click.
peter - change showpage for users

In this commit the standard content made by Jj0rn get's replaced by the
wireframes designed by Michiel Miedema and created by peter.