Update dependencies and improvements to build.xml.

I updated all of the libraries that McIDAS-V depends on and are not part of VisAD or IDV. I also went ahead and included the newest versions of JOGL and Java3D. The updated JOGL/Java3D appear to work fine on Java 6, 7, and 8 in my testing, and bundling _all_ McV dependencies gets us in good shape for distributing McIDAS-V.app and McIDAS-V.exe sorts of things.

I cleaned up parts of build.xml and also started trying to get build.xml to do incremental builds, rather than wiping out everything and starting from scratch all the time. The cleanup changes make us depend on Ant 1.7.0+…which was released in 2006, so hopefully it isn't a huge obstacle.