Another tunneling checkpoint.

- AYIYA works.
  - AYIYA analyzed connections are still labelled wrong in conn.log (logged as syslog)
- Some clean up for left over code.
- Small refactoring to pass packets back from analyzers to core.
- $uid is now optional in conn logs since ip-in-ip tunnel parent's
  won't have an actual connection.

src/Conn.h

@@ -245,7 +245,9 @@ public:
 	void SetTransport(TransportProto arg_proto)	{ proto = arg_proto; }
 
 	void SetUID(uint64 arg_uid)	 { uid = arg_uid; }
-
+	
+	Encapsulation* GetEncapsulation()	{ return &encapsulation; }
+	
 protected:
 
 	Connection()	{ persistent = 0; }