improved events

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11672 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
bugfix

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11673 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
refactor

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11674 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Helper renderers for panelGrid

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11675 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c