[visad] Update of VisAD library

The VisAD library has been updated to incorporate a correction for the
class dealing with the ABI simulated navigation transformation....

edu/wisc/ssec/mcidas/ABISnav.java  revision 1.4  date: 2008/12/22
19:42:08   author: tomw
 Incorporate Scott's changes to fix the inverse nav non-invertibility issue.

You may pick up the new visad.jar (and associated archive files) from
the links on the VisAD homepage.

Tom Whittaker
University of Wisconsin-Madison
Space Science & Engineering Center (SSEC)
Cooperative Institute for Meteorological Satellite Studies (CIMSS)
1225 W. Dayton Street
Madison, WI  53706  USA
ph: +1 608 262 2759