Base artifacts for new multiselectlistbox component.

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9577 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Lowercase params

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9578 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c