Lessons list new page
added classes to hide sitetoolbar, some small css bugs fixed
Single class to toggle sitetoolbar and sidebar
Minor css bugfixes, sitetoolbar toggle improvedi, narrow window look fixed
Content width and alignment fixed
Sitemap for narrow window
Merge branch 'lessons-section' into new-pages
Section page, lessons list
Unnecessarry code removed
Merge remote-tracking branch 'origin/new-pages'