1. Ant build scripts for my ten sketches
2. TheOrb moved to 2ndTier as it doesn't build with Processing 2.0 beta 7.
3. TracingPaper moved to 2ndTier as it's incomplete and unlikely to be finished soon.
4. For the sake of completeness added a libraries directory.
5. Batch files buildall.bat and runall.bat, as I was losing the will to live trying to persuade Ant to do everything.
6. Couple of minor tweaks to sketches to get them to build with Processing 2.0 beta 7.