bugfix

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11920 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
initmode for datatable

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11921 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c