Update cusercollection.cpp

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Update cusercollection.h

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Update thasharray.h

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Fix more CPPCheck warnings
Add basic CTM DDoS detection with referer support
Add CTM2HUB reply to client on DDoS detection
Fix ZLib compression of outgoing protocol
Fix upload bandwidth information when compression is used
Add Lua callback VH_OnCtmToHub(nick,conn_addr,conn_port,hub_port,referer)