All sorts of new crap and adjustments

IMFHeader.h

@@ -1,27 +1,25 @@
 #ifndef __IMFHeader_h__
 #define __IMFHeader_h__
 
-#include "PString.h"
+#include "ZString.h"
 
 namespace coreutils {
 
-   class IMFHeader {
+   class IMFHeader : public ZString {
 
     public:
       IMFHeader();
-      IMFHeader(PString &in);
-      IMFHeader(std::string key, std::string value);
+      IMFHeader(ZString &in);
+      IMFHeader(ZString key, ZString value);
 
-      std::string getKey();
-      void setKey(std::string name);
-      std::string getValue();
-      void setValue(std::string value);
+      ZString getKey();
+      ZString getValue();
 
       void output(std::stringstream &out);
 
     private:
-      std::string key;
-      std::string value;
+      ZString key;
+      ZString value;
 
    };