Updated SPONSORS with latest donor information

git-svn-id: http://svn.osgeo.org/qgis/trunk@6050 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: gsherman

SPONSORS

@@ -10,6 +10,7 @@
 # website entry is optional.
 Alessandro Pasotti|www.itopen.it
 Alexandre Leroux
+Carl Nelson
 David Enns|www.mapitout.com
 Ferdinando Urbano
 Glasic S.r.l.|www.glasic.it