Refactor

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10383 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Add closable option to DialogFramework

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10384 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c