union to study request
study requests for admin
migrations for study request
add user pages for study request
add locales for study request
add vk widget
some code refactoring
body padding top
Merge branch 'feature/study_request_37' into develop

Conflicts:
	app/views/layouts/web/admin/shared/_navbar.html.haml
	config/locales/activerecord.ru.yml
	config/locales/custom.ru.yml
	config/locales/helpers.ru.yml
	config/routes.rb
	db/schema.rb
Merge branch 'feature/fixed_menu_36' into develop