Revert removal of homepage image by edX
Override main_django template

Change favicon path and include/replace theme templates.
Improve course staff style in course about page
Update readme
Remove section from content-wrapper
Reduce border size inbetween courses
Remove missing section content-wrapper
Use static method to generate all static URLs
Fix course active sidebar item color
Fix home background image
Fix default p CSS rule in course about page
Fix global ul style
Add h3 style in course about page
Fix about image size
Remove pointer cursor from private registration link
Increase private course button width
Improve style of about_page title
Update course about page sidebar style
Remove borders in course about sidebar
Remove courseid from register button

Also update register button size