Updated the polyfill
Updated the Zepto version
Fully updated Zepto and added a few modules
Updated the version and the readme

Updated the version of this gem and also updated the readme, because of
the new modules
Update README.md
Merge pull request #1 from petehamilton/patch-1

Update README.md
Merge pull request #3 from stefanvermaas/master

Updated Zepto to the new version