own namespace for search expression framework and fixed @widgetVar

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9478 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
cosmetics

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9479 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c