I added support for a few more popular libraries. Date.js doesn't use semantic versioning and hasn't been updated since Nov 2007. It's been stuck at Alpha-1 since then, but a lot of people use it.
Thanks for the awesome little package! I've been sidestepping creating something like this myself for too long.
add support for d3
add support for protovis
add support for polymaps
add date.js support
cool man, no worries about the versioning, just important that we support what we can but its not a deal breaker. thanks!