[?] somehow hide channel operators like ircnet can do?
[x] merge m_join.c and m_sjoin.c in one module (same functions, done in ratbox3)
[x] create chmode.h and put there all declarations of chm_* - this will make some modules clean
-[F] Move most use of server WALLOPS to a global mechanism.
- [F] Add SNONOTICE protocol command (like in InspIRCd) to broadcast to a specific SNOMASK.
- [F] Adopt commands to this framework.
+[?] Move oper override server WALLOPS to global server notices?