Removed the (unimplemented) operator <, and added operator == (in place of is()) for nodes

include/yaml-cpp/node/impl.h

@@ -233,17 +233,8 @@ namespace YAML
 	}
 
 	// free functions
-	inline int compare(const Node& lhs, const Node& rhs)
-	{
-		return 0;
-	}
-	
-	inline bool operator<(const Node& lhs, const Node& rhs)
-	{
-		return false;
-	}
 
-	inline bool is(const Node& lhs, const Node& rhs)
+	inline bool operator==(const Node& lhs, const Node& rhs)
 	{
 		return lhs.is(rhs);
 	}

include/yaml-cpp/node/node.h

@@ -84,10 +84,7 @@ namespace YAML
 		detail::node *m_pNode;
 	};
 
-	int compare(const Node& lhs, const Node& rhs);
-	bool operator<(const Node& lhs, const Node& rhs);
-	
-	bool is(const Node& lhs, const Node& rhs);
+	bool operator==(const Node& lhs, const Node& rhs);
 	
 	template<typename T>
 	struct convert;