Convert icons on course_about to font awesome
remove unused icon images
paver run_quality should run both pep8 and pylint diffs with -p flag

TE-555
small UI fixes on dashboard for RTL
Merge pull request #5696 from Stanford-Online/giulio/course-about-font-awesomize

Convert icons on course_about to font awesome
Fix test page definition for course group configurations page
TNL-685
Merge pull request #5719 from edx/frances/fix/rtl-dashboard-fixes

small UI fixes on dashboard for RTL
Merge pull request #5721 from edx/zoldak/fix-easy-access-test

Fix test page definition for course group configurations page
Add discussion info to SFD
Merge pull request #5583 from edx/sylvia/docs/SFD_Discussions

Sylvia/docs/sfd discussions
Merge pull request #5650 from edx/benp/TE-555

run_quality should run both quality reports in the case of a threshold breach