[ic] ups_cache expires

[Steve Graham]

Hello,

Bill Carr had  a good idea here:
http://www.icdevgroup.org/pipermail/interchange-users/2003-June/033985.html

 >>>
Line 76
if($now - $updated > $Variable->{UPS_CACHE_EXPIRE} || 86000) {
<<<

Might as well let the user select the time frame to keep the cache, 
or let UPS_CACHE_EXPIRE be a multiple of 86000 to approximate the 
number of days.

Any reason 30 (86000*30) days wouldn't work - maybe even 90 days.

UPS doesn't change rates that often, and we aren't concerned about 
the data accumulation.

IC 5.4 is working great!

Any thoughts?

Thanks,
Steve Graham