more serious work on JString.

testing/jstring_test.cpp

@@ -17,6 +17,7 @@ int main(int argc, char **argv) {
 
    test1["health"] = "100";
    test1["comment"] = "this is a comment";
+   test1["racex"] = "elvin";
    test1["race"] = "human";
    test1["array"] = "[\"test1\",\"test2\",\"test3\"]";
    test1["tester"] = "test field";
@@ -32,6 +33,7 @@ int main(int argc, char **argv) {
    std::cout << test1["name"] << std::endl;
    std::cout << test1["health"] << std::endl;
    std::cout << test1["comment"] << std::endl;
+   std::cout << test1["racex"] << std::endl;
    std::cout << test1["race"] << std::endl;
    std::cout << test1["array"] << std::endl;
    std::cout << test1["tester"] << std::endl;

testing/mstring_test.cpp

@@ -8,11 +8,8 @@ int main(int argc, char **argv) {
    std::cout << "char * operator=: [" << test1 << "]." << std::endl;
    test1 = "new value.";
    std::cout << "char * operator=: [" << test1 << "]." << std::endl;
-   std::cout << "001" << std::endl;
    std::string test11 = "this is a test";
-   std::cout << "002" << std::endl;
    coreutils::MString test12 = test11;
-   std::cout << "003" << std::endl;
    std::cout << "assign from std::string: [" << test12 << "]." << std::endl;   
 
    coreutils::MString test2("this is another test.");