bug fixes on mstring and jstring.

JString.h

@@ -56,17 +56,18 @@ namespace coreutils {
 	 friend std::ostream &operator<<(std::ostream &os, const Proxy &proxy);
 
 	 operator coreutils::ZString () {
-//	    std::cout << "operator to ZString: " << key << std::endl;
 	    return jstring.find(key);
 	 }
 
 	 operator coreutils::MString () {
-//	    std::cout << "operator to MString: " << key << std::endl;
 	    return jstring.find(key);
 	 }
 
+	 operator std::string () {
+	    return jstring.find(key).str();
+	 }
+
 	 Proxy& operator=(coreutils::ZString value) {
-//	    std::cout << "proxy operator=" << value << std::endl;
 	    jstring.set(key, value);
 	    return *this;
 	 }
@@ -77,7 +78,6 @@ namespace coreutils {
       };
 
       Proxy operator[](coreutils::ZString key) {
-//	 std::cout << "operator[" << key << "]" << std::endl;
 	 return Proxy(*this, key);
       }