Customizable icon for confirm feature

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9525 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
[perf] native loop

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9529 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c