ref. article :
http://rik-ansikter.blogspot.com/2012/02/optimizing-resource-loading-with.html
http://stackoverflow.com/questions/7768109/jsf2-static-resource-management-combined-compressed
ref. article :
http://rik-ansikter.blogspot.com/2012/02/optimizing-resource-loading-with.html
http://stackoverflow.com/questions/7768109/jsf2-static-resource-management-combined-compressed