Newer JQuery UI
Make slicing plane optional.
Show unit-length checkboard in 2D view.
Set tighter escape distance.
Fix small bug regarding changing anchor, the new distance to anchor
should not be equal to the old distance to anchor.
Adjust the range of the slicing plane location based on the bounds
of the mandelbox for a given parameter
Support for Juliabox rendering and make the mouse positions
relative to the canvas instead of the screen.
Two littles changes about Juliabox I forgot.
Increase contrast in 3D view.
Do timing.
"webgl" not supported on all browsers, still need "experimental-webgl"