fix lesson's notes layout
fix video thumbs layout (home)
fix header layout
don't change language based on browser language
organize courses in home templates in rows
translations
fix course material layout page
Merge branch 'layout' of github.com:hacklabr/timtec into layout
fix lesson's notes layout
fix video thumbs layout (home)
fix header layout
organize courses in home templates in rows
Merge branch 'layout'

Conflicts:
	static/css/course.less