1. Download extJS 4.1 (http://www.sencha.com/products/extjs), unzip, and place where ever you like.
1. Download extJS 4.1 (A version of 4.1 is hosted here: http://my.jasondenney.com/extjs-4.1.1.zip) Latest versions at http://www.sencha.com/products/extjs. Unzip and place where ever you like.
1. Link to your extJS folder path under `public/extjs`: (From app root) `ln -s /MY/PATH/extjs/ public/extjs`
1. Link to your extJS folder path under `public/extjs`: (From app root) `ln -s /MY/PATH/extjs/ public/extjs`