Upward Compatibility

If you are using MGGHAT Version 1.0, it should be simple to move to Version 1.1.

1. Concatenate the three files main.f, prob.f, and inittr.f into a single file called user.f.
2. If you have your own version of second.f, use it.
3. If you assign graphics selections in the main program, change the assignment to match the new graphics manipulation (see section 8.1).
4. The assignment of parameter values in the main program is no longer necessary (if default values are used), and they can be removed. On the other hand, it doesn't hurt to leave them there.