use only min jquery and zepto, stop the madness
try to not delete zip file first.
that didn't work, but at least jquery and zpeto dont update every time
keep non-min just in case. don't uglify them tho

let the vendors uglify them and test it instead of us.
Merge pull request #283 from nys-its/make-the-jquery-non-change-stop

stop jquery and zepto from being "updated" every time grunt is run