Add hash attribute to caps (sha-1), plus mod_iq_disco was modified to answer disco requests which are asked with it's node
Move setConfig out of the Chat class
Prevent the user copy (vk ghost) from joining the chat
Prevent inviting the user to the chat if they're already in
Use http://jabber.org/protocol/muc instead of gc-1.0
Fix re-registration without removing the old one
Remove I am a ghost option to not confuse users
Change http links to https ones
Use message type normal when answering to the captcha command
