Fixed web mod traffic being counted twice. Issue identified by psychon.

git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@2003 726aef4b-f618-498e-8847-2d620e286838

WebModules.cpp

@@ -143,6 +143,10 @@ CWebSock::~CWebSock() {
 		CZNC::Get().AddBytesRead(GetBytesRead());
 	}
 
+	// bytes have been accounted for, so make sure they don't get again:
+	ResetBytesWritten();
+	ResetBytesRead();
+
 	// If the module IsFake() then it was created as a dummy and needs to be deleted
 	if (m_pModule && m_pModule->IsFake()) {
 		m_pModule->UnlinkSocket(this);