[Shake-dev] ShakeMap Update r623

[Peter Lombard]

Bruce,

There appears to be a bug in genex that perhaps has existed in previous
versions:
Undefined subroutine &main::tempfile called at /home/ncss/shake/shake3.5/bin/../bin/genex line 595.

Oddly, it does not get touched if grind.conf includes: 
x_grid_interval : 1m
y_grid_interval : 1m

I'm guessing that something changed recently in programs between grind and
genex that is finally triggereing this bug. That's because my production
system did not previouslly have the x_grid_interval and y_grid_interval
parameters set in grind.conf. But I had that in my test system.

Pete