17. Cell wide channel founder support, and permanent channels when
founder mode set.
+ 20. Services support?
+
+ 21. Subscription/IRC's notify kind support?
+
+ 22. Session detachment/resume?
+
+ 23. Message blocking via user modes (which could be expanded via
+ services, but basic blocking would be a feature)?
+
o Inviting and banning by public key should be made possible. To be
included in protocol version 1.2.