Add unl_reset command.

src/UniqueNodeList.h

@@ -11,11 +11,9 @@ class UniqueNodeList
 	// hanko to public key
 	//std::map<uint160, uint256> mUNL;
 public:
-	//void load();
-	//void save();
-
 	void addNode(NewcoinAddress nodePublic, std::string strComment);
 	void removeNode(NewcoinAddress hanko);
+	void reset();
 
 	// 0- we don't care, 1- we care and is valid, 2-invalid signature
 //	int checkValid(newcoin::Validation& valid);