Update README.md
Merge branch 'gh-pages'
Keyframe animation example
Added a canvas resizing example and updated jquery-ui script
Added new xml3d-motion.js
Initial version of SIG
Added SIG dragon
Added dragon
New version with bounding box info in mesh
Added image processing examples.
Added visibility setting via shader.
Added bool selector.
Started implementing propagation of AR visibility array to characters via Xflow+Shader.
Small fix in AR example with Xflow.
Finished processing of visibility array.
Updated xml3d.js script.
Added propagation of perspective projection from AR operator to view element.

Reduced code amount.
Added new AR example.
Updated image processing examples to the latest version of xml3d.js.
Added minimal AR example.