update packaged freeglut to release 2.8.1
fix freenect-dependent build properties
export Blob class to DLL
remove superfluous usb init
actually get rid of the unneeded usb init code
add .gitignore
sanity check for regions with < 3 vertices
update README & add packaged libfreenect binaries
new glut callback semantics for Win7/X11
add some more ignore patterns
update bundled libfreenect with separate debug/release builds
switch to SWIG 2.0
ugly hack: use only depth buffer for Kinect synchronization