Removed back buttons.
Merge branch 'master' of github.com:duffcodester/digiquatics into remove_back_bu

Conflicts:
	app/views/private_lessons/show.html.erb
	app/views/slide_inspections/show.html.erb
	app/views/sub_requests/show.html.erb
Merge branch 'master' of heroku.com:staging-digiquatics into remove_back_bu
Merge branch 'master' of github.com:duffcodester/digiquatics into remove_back_bu
Removed bootstrap assets from public.
Merge pull request #1407 from affektive/remove_back_bu

Removed back buttons. #1400