OF-1350: Be more flexible when dealing with MUC room passwords
XMPP defines two configuration fields for password-protecting a room:
- one that defines if the room is password protected.
- another one that defines the password.
Openfire, internally, only stores the password, if password-protection is required.
Some clients send only a password, without explicitly defining the password-protection boolean. In such cases, Openfire should be somewhat flexible, and process the configuration form as intended by the user.
