symbolab integration
logos
Updates to about page (added Eli, Omri V.)
new footer includes associations
symbolab integration
Merge branch 'production' into new-logos

Conflicts:
	app/khan-exercises
moved symbolab into exercises
deploy now updates khan-exercises and symbolab to latest master
deploy: add a log message
fix for subhints in symbolab exercises
Merge branch 'new-logos' into symbolab
hebrew translations for error page
fix - logo box fo ani10
Merge branch 'production' into symbolab