Fix channels being removed from the frame managers on server disconnection, rather than on close
Fix channels being removed from the frame managers on server disconnection, rather than on close

git-svn-id: 50f83ef66c13f323b544ac924010c921a9f4a0f7@2046 00569f92-eb28-0410-84fd-f71c24880f43

DMDirc/DMDirc,greboid/DMDirc,DMDirc/DMDirc,csmith/DMDirc,csmith/DMDirc,DMDirc/DMDirc,greboid/DMDirc,csmith/DMDirc,csmith/DMDirc,ShaneMcC/DMDirc-Client,greboid/DMDirc,greboid/DMDirc,ShaneMcC/DMDirc-Client,ShaneMcC/DMDirc-Client,DMDirc/DMDirc,ShaneMcC/DMDirc-Client