- Allow servers and service to send @%+ prepended channel messages

git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid-8@1478 82007160-df01-0410-b94d-b575c5fd34c7
- fix msg_channel_flags() so it can deal with messages coming from servers

git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid-8@1479 82007160-df01-0410-b94d-b575c5fd34c7
- flood_attack_channel(): remove useless argument

git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid-8@1480 82007160-df01-0410-b94d-b575c5fd34c7
- m_message.c: /messaging opers@some.server is no longer supported

git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid-8@1481 82007160-df01-0410-b94d-b575c5fd34c7