clean up some unneeded files, and prevent creating 'public' schema
create users without passwords, only set their password during confirmation
add chosen-rails for committee-member chooser. Fix ability to update user profile to adjust details (including no-emails, location, name)
add ability for admin to create multiple users at once
remove need for user to have a name (from spec)
include the rulebook name in the invitation emails
prevent sending e-mails to unconfirmed accounts
fix user-sign-up system, was broken by inadvertently overriding devise's UserController
another bulk-user fix
fix faq error.

Also add description of discussion to FAQ (briefly).