include windows binaries

this is my very first pull request ever so pls dont be mad if i screwed it up.

this is basically what i have done in node-mirror. i did not actually test my modifications. just wanted to show you how i would approach the matter.

a actual test would have to go successfully through npm and since you are using some dev tools i am not familiar with i could not do a actual test.
but it works fine in node-mirror so it would be cool if we deliver windows binaries based on this proof of concept.