Refactored and Improved hidden container support for cleaner api, less memory usage and better performance on client side.

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9896 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Improved digits validator

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9897 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Client side validation support for inputtextarea

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9899 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
cosmetics

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9901 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c