home course  thumbnails mouse-over
delete about and contact links from footer
delete duplicate file path from gitgnore
fix home layout, add how it works section
add highlight text to header image
fix home header text responsive layout
fix filters responsive layout on courses admin page
fix template error on my notes page
remove preview button
fixing responsive layout from new lesson page
add margin-bottom to .search-filters (fixes #467)
remove workload section from course page
remove go to course button from materials page (refs #455)
fix question page (closes #466)
fix user photo on profile page
fix user photo on profile page
fix upload avatar button on edit profile page
fix responsive issues on edit profile page
fix responsive issues on course notes page
fix responsive issues on course header