Error Handler Functions

MPI_Errhandler_create: Deprecated - Use
MPI_Comm_create_errhandler. 
MPI_Errhandler_set: Deprecated - Use
MPI_Comm_set_errhandler. 
MPI_Errhandler_get: Deprecated - Use
MPI_Comm_get_errhandler. 
MPI_Errhandler_free
MPI_Error_string
MPI_Error_class