added ros node, camera launch, histogram and image view node
added lifecam config and launch
adaptive threshold
sobel and adaptive threshold
added grizzly.ppm, the testing image to ipynb
quick blobtracker
added blobtracker crosshairs, ported to ros
servoing working kinda
example using matplotlib in realtime
added offline template matching tests
online template_matching seems to be working
template matching with drag interface working
blobtracking reading from both cameras, saving video
template matching servoing
added video saving
converted blobtracker, template_match to ipython 1.1, added imsaves