Add chaos_org_chart.png
Add tutorial buttons

Also the code has been formatted to be more readable
Move css to css/style.css

And reformat en/index.html to match index.html
Prettify (not really pretty yet) tutorial buttons
Remove extra ending tags in index.html
Add link to Github
Fix link to danish site from english site
Add link to general_intro.html in index.html
Update general_intro.html
Add metadata properties
Fix non-ending <p>
Add links to CHAOS.Portal.Client libraries
Fix link comment in css/tutorial.css
Add better coloring of visited links
Change property descriptions