Utility Class - Implements an Error Handler for DIM Servers and Clients
    If the user declares an errorHandler the method errorHandler is called when an error is detected
    otherwise an error message is printed on stdout.

Constructors :

• DimErrorHandler ( ) ; Declare an errorHandler

Public Functions :

• void errorHandler (int severity, int errorCode, String Msg ) ; To be overloaded by the user. Gets called when an error is detected. Severities and error codes are defined here.

    Example :

        DimErrorHandler erid = new DimErrorHandler()
        {
            public void errorHandler(int severity, int code, String msg)
            {
                if(code == DIMSVCDUPLC)
                    System.out.println("Service already declared");
                System.out.println("Error: "+msg+" sev: "+severity);
            }
        };