Merge branch 'master' of https://github.com/C4ptainCrunch/whiteboard
[fix] Use --urlprefix again
[fix] missing trailing /related for keywords URL
[fix] Add .sass-cache to ignored files
[add] Now the graph SVG is index page
Now course description is rendered as Markdown
[enh] Now box is a base template
[fix] Adapt a comment to Sass syntax + various style enhancements
[add] JQuery enters the game
[fix] Adjusting box style
[enh] Course now uses the box layout too
Merge remote-tracking branch 'titou/master'
[add] thread creation is now possible
[enh] Node is now taggable by using Node.add_keyword('plop')
[fix] ignore whiteboard/templates/graph.svg