trend-update.pl v1.04 released

Hello list,

This should have been done long ago, but here it is: the v1.04 version
of trend-update.pl fixes the "ERROR: unable to determine newest engine
version..." error appearing since Trend have changed the format of
their update engine files.
I've reworked the logic a bit, and it should now hopefully be somewhat
more resistant to new changes like this.

Download from:
http://itsec.ait.ac.th/download/local/trend-update/trend-update.tar.gz

Sorry for the ones who've been bitten by this bug, Chris Covington
especially. I had the fixed version running here for a while already,
but I've just omitted to release it *blush*.

Greets,
_Alain_