Nodejs compatability but need compilation

@kripken

The nodejs compatibility changes have been made to `pre.js` & `post.js` but need to recompiled so as to be in `speak.js` / `speak.full.js`.

Also, could i request that we create a `examples` folder to contain all the demos, so I can add demos for nodejs, without cluttering the root.

Once you've merged these changes, i'll grab the compiled version from you and resubmit to npm etc etc


chris