Ported DialogFramework examples to new showcase

git-svn-id: http://primefaces.googlecode.com/svn/showcase/trunk@11182 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Ported Client Side Validation examples to new showcase

git-svn-id: http://primefaces.googlecode.com/svn/showcase/trunk@11183 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c