Add NAPTR support for sip accounts. Fix SipAccountID.equals to take in account protocol and service, which fixes several gui problems with account config form, such as creating new account with username already existing not shown, deleting account makes all existing accounts with same username disappear, updating status of disabled accounts. Disable accounts now can be deleted. Use word picture for "My Recent Avatars". Fix not to send sip PUBLISH messages when we are in connection failed.