Deprecate package in favor of the official version

Hi Chris,

I'm a fellow Meteor dev and volunteer package curator on Atmosphere. I found your Hammer.js wrapper and used it as inspiration for an [official Hammer <-> Meteor integration](https://github.com/hammerjs/hammer.js/pull/724).

Hammer.js now has an official package published at https://atmospherejs.com/hammer/hammer, with integration straight from the source repo, so the package will always be up to date.

Would you like to support this official version? If so, you can run

    meteor admin set-unmigrated chriswessels:hammer

After that, you can add a