Fixes to loading Forth, all context references are to 'this' in the parser, and not 'context'.  Channels tossed out in favor for subscriptions and filters.  Hoo
ks for external console code.  Clear stack added.
HTML5 console driver code added.
Revamped index.html landing page to be CSS'ed up and use the new HTML5 console driver code.
Revamped index.html landing page to be CSS'ed up and use the new HTML5 console d
river code.