Much cleaner code for dissecting the packets.

known issue: after a while, it seems to 'forget' a connection
belonged to a process and starts adding the traffic to the unknown
process.

nethogs.h

@@ -99,9 +99,4 @@ private:
 	short int sa_family;
 };
 
-enum packet_type {
-	packet_ethernet,
-	packet_ppp
-};
-
 #endif