add foundation v5.2.2 with manually minifing

 - minify js/foundation/*.js via http://javascript-minifier.com/
 - minify css/normalize.css via http://cssminifier.com/
 - files under js/vendor are already minified, no need to do it again
add foundation-essential v5.2.2 with manually minifing

 - minify js/foundation/*.js via http://javascript-minifier.com/
 - minify css/normalize.css via http://cssminifier.com/