[visad] VisAD library updated

The VisAD library has been updated to r6023.  You may pick up the
current visad.jar and other jar files from the links off the VisAD
homepage.  Here is a summary of the changes since the last update on
11 March 2013:

----------------------------
Jonathan Beavers, 2013-05-07 : Fix for non-unique ADDE
descriptor comment strings.

core/src/edu/wisc/ssec/mcidas/adde/DataSetInfo.java

----------------------------
Tom Whittaker, 2013-05-07 : Replaced plotting symbols for
turbulence to conform to AWC/ADDS instead of GEMPAK [1456]

core/src/visad/util/wmo.jhf

----------------------------
Tom Rink, 2013-05-03 : Label frequency logic: don't create
a tiny segment at the end.

core/src/visad/Contour2D.java

----------------------------
Tommy Jasmin, 2013-04-09 : Add MSG-3 support to HRIT
adapter [0]

core/src/visad/data/hrit/HRITAdapter.java
core/src/visad/util/Util.java

----------------------------
Tom Rink, 2013-04-02 : Let the application set this
renderer to be not greedy.

core/src/visad/bom/CurveManipulationRendererJ3D.java

----------------------------
Tom Whittaker, 2013-04-01 : allow getDomainSizes(Data) to
return lengths of more than just GriddedSets

core/src/visad/python/JPythonMethods.java

----------------------------
Tommy Jasmin, 2013-03-28 : lose redundant PI declarations
in nav code

core/src/edu/wisc/ssec/mcidas/ABISnav.java
core/src/edu/wisc/ssec/mcidas/GEOSnav.java
core/src/edu/wisc/ssec/mcidas/GOESnav.java
core/src/edu/wisc/ssec/mcidas/GVARnav.java
core/src/edu/wisc/ssec/mcidas/KALPnav.java

----------------------------
Tom Whittaker, 2013-03-28 : Add warning in Javadoc of
AreaAdapter regarding AreaFile.  Add real getSubpoint()
method to GMSX nav.

core/src/edu/wisc/ssec/mcidas/GMSXnav.java
core/src/visad/data/mcidas/AreaAdapter.java

----------------------------
Tom Whittaker, 2013-03-25 : AREAnav->better error msg.
GOESnav->allow some negative orbital params for old GMS
data

core/src/edu/wisc/ssec/mcidas/AREAnav.java
core/src/edu/wisc/ssec/mcidas/GOESnav.java

----------------------------
Tom Whittaker, 2013-03-25 : Update to testing script info

testing/README

----------------------------
Julien Chastang, 2013-03-21 : change label size correctly

core/src/visad/ContourControl.java

----------------------------

--
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