Worked on ZString, MString and JString

MString.h

@@ -36,8 +36,12 @@ namespace coreutils {
 
       MString(char *data, size_t length);
 
+      MString(unsigned char *data, size_t length);
+
       MString(const char *data, size_t length);
 
+      MString(const unsigned char *data, size_t length);
+
       ///
       /// Consructor providing a copy of a ZString.
       ///
@@ -58,7 +62,17 @@ namespace coreutils {
 
       MString(std::string data);
 
-      ~MString();
+      ///
+      /// 
+      ///
+
+      MString(std::FILE *file);
+
+      ///
+      ///
+      ///
+
+      virtual ~MString();
 
       ///
       /// Assignment operator will copy data to backing store.