Avoid jQuery pseudo-selectors for better performance

jQuery pseudo-selectors are slow!

http://jsperf.com/animated-pseudo-selector/3
http://jsperf.com/jquery-eq-method-vs-eq-pseudo-selector
Update minified file with f32eefdc5a72ff195c5cefca3df41b8985275aca
Merge pull request #43 from i-like-robots/master

Remove using jQuery pseudo-selectors