message: change value type to support long string compare
diff: @@ -323,7 +323,6 @@ public:
  static std::string getThreadID();
  static int memUsedPercentage();
  static int memoryLeft();
  - //static int compare(const char* _str1, unsigned _len1, const char* _str2, unsigned _len2); //QUERY(how to use default args)
  static int compare(const char* _str1, unsigned long _len1, const char* _str2, unsigned long _len2);
  static int string2int(std::string s);
  static std::string int2string(long n);
  