Clang 5.0 fixes

- Added override keyword
- Removed inherited member variables

src/HTTP/HTTPServerConnection.h

@@ -33,7 +33,7 @@ public:
 	cHTTPServerConnection(cHTTPServer & a_HTTPServer);
 
 	// Force a virtual destructor in all descendants
-	virtual ~cHTTPServerConnection();
+	virtual ~cHTTPServerConnection() override;
 
 	/** Sends HTTP status code together with a_Reason (used for HTTP errors).
 	Sends the a_Reason as the body as well, so that browsers display it.

src/HTTP/SslHTTPServerConnection.h

@@ -26,7 +26,7 @@ public:
 	Sends the specified cert as the server certificate, uses the private key for decryption. */
 	cSslHTTPServerConnection(cHTTPServer & a_HTTPServer, const cX509CertPtr & a_Cert, const cCryptoKeyPtr & a_PrivateKey);
 
-	~cSslHTTPServerConnection();
+	virtual ~cSslHTTPServerConnection() override;
 
 protected:
 	cBufferedSslContext m_Ssl;