dynamic columns for treetable

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@12056 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
bugfix

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@12058 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Upgrade editor I

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@12059 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Upgrade editor II

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@12060 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c