Adjustments to Crystallize build.xml.

Changed the file so that only information at the top would have to
be changed to use the file with other projects.
Changed name to ColorTiles.
Created PeggyView sketch.

This sketch captures frame through the web cam, thresholds them,
downsizes and then feeds the image over a serial port to an
attached Peggy 2 board.
Added two webcam-based sketches.

BrightnessTracking tracks the brightest pixel in the web camera
stream. BrightnessThresholding does binary thresholding on the
web camera stream.
Merge branch 'master' of github.com:jbromley/Processing