[Bug-gnubg] Scratching a couple of itches ...

[Nis Jorgensen]

I had to stay in bed this weekend, and used the time to fix a couple of
my "Most Wanted" improvements:

- Gnubg allows you to resign AFTER you roll, based on what you rolled.
This actually fixes a way to cheat - resigning if your equity drops to
below -1 or -2  when you roll.

- Dragging checkers allows for pick-and-pass. The logic I have
implemented is to hit if possible, and if there are two options, hit
with the "left" die (ie highest in standard setup). I am still working
on undo of pick-and-pass.

- "Speed Calibration" now avoids using the same seed for randomization
every time, so gives reliable results on consecutive runs.

I will create patches for these as soon as I get cvs working ...

/Nis