Dynamic selection for DataTable

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11711 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Responsive support for PanelGrid

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11712 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c