New gesture recognition algorithm. Needs to be tested.
Switch to SimpleCV for tracking
New data
Exit data capture mode on left mouse click
Merge remote-tracking branch 'origin/nikita/simplecv' into argusdusty/simplecv
New targets for vision detection
Merge remote-tracking branch 'origin/argusdusty/simplecv' into nikita/simplecv
New blob tracking using hue histograms
Speed optimization: only search in part of image
Different histogram for magenta
Mark background threads as daemons
Add a frame rate counter
New tracking algorithm based on max-finding
Only import modules if necessary

This speeds up "python asterisk.py" with no arguments, which just prints
a help message