Working package for Meteor 0.9.x

Hi Abhijeet, thanks for packaging this for Meteor!

I updated it to accomodate new Meteor 0.9.0 packaging requirements.

I also changed submodule reference to point to the upstream fork with fixes https://github.com/sliptree/bootstrap-tokenfield/pull/173 and https://github.com/sliptree/bootstrap-tokenfield/pull/174

This way we can publish this package now, without having to wait for the upstream folks to merge the pull requests. Once pull requests are merged, we can switch the submodule reference back to main repo and publish the updated version of the package.

Please let me know your thoughts.