added Grunt, started work on data model in js
Merge branch 'master' into change-theme

Conflicts:
	doc/Notes.md
updated to use grunt and sass
Merge branch 'change-theme' into develop

Conflicts:
	style.css
updated to work with Github Updater
Merge branch 'develop' of github.com:italy-portugal/IFMA-Courses into develop

Conflicts:
	style.css