fix : Download Collision (SiRoB)
fix : Hello-Handshake (SiRoB)
adjust : One-queue-per-file to eMF PowerShare (taz)
update : Powershare from file->IsPowerShared to client->IsPowerShared (taz)
change : friends are immuned to no PowerShare for leecher and to no SUQWT for leechers (taz)
remove : AJ ban from ban control
