admin block crud
add locales for block
add block validations
sort blocks in admin
show blocks on main
block locale fix
remove vk group
show instructors in grid
Merge branch 'develop' into staging

Conflicts:
	app/views/web/welcome/index.html.haml
paginate instructors
Merge branch 'feature/instructors-grid-92' into staging

Conflicts:
	app/controllers/web/instructors_controller.rb
	app/views/web/instructors/index.html.haml