resizing and repositioning

in case of middle, canvas will now forcibly resize to an odd number of
columns at the required pixelSize.

'wrap' now has two settings: 'random' and 'false'. false lines the edge
of the canvas with 0s, random with radixed coinTosses. anything else
preserves original wrapping functionality.
Merge branch 'gh-pages' of https://github.com/ogham/mindless-automata into gh-pages

Conflicts:
	automata.js