Add some more server events.

Change-Id: I166452c8596b841ad6c72c11f215fa3a085f8d0d
Depends-On: Ib12542d236757d76540d57ff54341e3b73ceb598
Reviewed-on: http://gerrit.dmdirc.com/3438
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>