Initial commit
First release of documentation and source code of SVFORTH to the public.
Update README.md

Added GPLv3 license, links to documentation and slides.
Remove extraneous logging statement slowing performance down.
Clean up `randrect` example code to be readable and commented.
Cleanup and documentation of canvas functions
Cleanup and documentation of Forth binary functions
Restructure of many functions out of rss.js into their own libraries.  RSS and DS is currently broken at the moment, though.
We now correctly execute subcontexts in the case of RPC calls and function definitions.
node.js support integrted -- invoke 'node forth/node.js' for a REPL
Merge branch 'master' of github.com:ephsec/svforth