added initial package.json and MIT License

MIT License added because license is a required field according to http://wiki.commonjs.org/wiki/Packages/1.0

The repositories/repository section seems to be different between CommonJS specs and what I found in actual node modules.  I think a bower.json may need to be added in addition to package.json.  There were requests by other parties to try to merge bower definitions into package.json but they were rejected.

I'll take a look and make another pull request if that is the case.