Support using a single JSON array as input
Fix exceptions that get uncovered when -d is active
Use vm module from Node 0.4+ to handle execution of scripts
Bump Node.js version requirement to 0.4

We're now using the vm module, so all four remaining users of v0.2 are
out of luck now.
Add documentation on key removal (possible now with vm module)
() doc and package updates.
() use curl -s thanks to xmlblog for tip.
Replace sys module with util and sys.puts with console.log.
() updating version and adding contributor.
stop showing EPIPE
() updating version and adding contributor.
remove sys module

This is the same fix as de7d7179.
update documents to use `util` instead of `sys`
() update version number.
Added -, for leading-comma / diff-friendly / Node-style output.
Oops; cuddle arrays correctly too.
Fix jsd-mode syntax warnings
Added "npm test" support
Added test coverage for leading-comma output