added: Rebus

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git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@521 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/request.h

@@ -187,6 +187,9 @@ private:
 	// it contains '\0'
 	const char char_empty;
 	
+	// used when returning a reference to std::string (when the string doesn't exist)
+	const std::string string_empty;
+
 	const char * SetEnvVar(const char * var);
 	
 	void StandardLog();