LaunchBox: Fixed uninitialized member CID 1162820
Uninitialized members CID 1162813 and 1162814
Network preflet: Removed unused member (CID 1162811)
HttpRequest: Apparently fContext can be NULL. CID 1162798
DataRequest: Don't leak buffer in error case. CID 1162796
NetEndpoint: Don't forget to close socket in error case. CID 1162792
listusb: Out of bounds array access. CID 1162781
Memory allocation fixes.