Add MIT license text and update package.json

[pnemade]

Hi,
I am packaging this in Fedora Linux and we have packaging policy to include license text also. Can you please commit this pull request and release new tarball in npm.

[notslang]

👍, Though we should probably remove it from the readme now that it's mentioned in the package.json and in a file... seems redundant.

[pnemade]

Its always good to add license tag in package.json and its full license text in a separate file. We have a packaging review check which says "If the source package does not include license text(s) as a separate file from upstream, the packager SHOULD query upstream to include it. "

Also, many other nodejs module owners on github has accepted such pull requests.

[notslang]

Yeah, I'm saying the "License" section of ./Readme.md is now redundant and should be removed... putting it into the package.json & separate file is a great idea.

[pnemade]

Oh Sorry I misunderstood your last comment. I have rebased pull request to remove license information from Readme.md also.