We don't need a mutex lock in Channel::retain/release... I think.

src/common/Object.h

@@ -59,14 +59,14 @@ public:
 	 * Retains the Object, i.e. increases the
 	 * reference count by one.
 	 **/
-	virtual void retain();
+	void retain();
 
 	/**
 	 * Releases one reference to the Object, i.e. decrements the
 	 * reference count by one, and potentially deletes the Object
 	 * if there are no more references.
 	 **/
-	virtual void release();
+	void release();
 
 private: