Shows min password length on edit password view.
Fixes accidentally removed autofocus.
Use Rails 4.2.0.rc3.
Moves minimum_password_length to DeviseController.
Merge pull request #3372 from Katee/show-min-password-length-on-edit-password

Show minimum password length on edit password
Merge branch 'master' into scrub-referer

Conflicts:
	app/controllers/devise/passwords_controller.rb