HIDRemotemodule.m: Support for Logitech Music Anywhere USB headphones.
libHIDUtilities.a, HID_Utilities_External.h: built from <http://homepage.mac.com/geowar1/.Public/Sample%20Code/HID_Utilities.sit>
setup.py: Build HIDRemote module.
StreamVision.py: Support Bluetooth headphones; don't turn on/off the stereo if we use the play/pause control on the headphones.