Improved dynamic columns inside columnGroup

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11998 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
render project stage except production

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@12000 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
mobile support for project stage config

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@12001 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c