add russian validator
add russian validation
fix test factories
add role for user and change user edit admin form
add lectors controller and routes
hide facebook button and fix user images
Merge branch 'feature/99_lectors_page' of https://github.com/kaize/nastachku into feature/99_lectors_page

Conflicts:
	app/models/user.rb
	app/views/web/admin/users/_form.html.haml
	app/views/web/lectors/index.html.haml