Better exception handling

git-svn-id: http://primefaces.googlecode.com/svn/showcase/trunk@11415 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Visuals

git-svn-id: http://primefaces.googlecode.com/svn/showcase/trunk@11416 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Cosmetics

git-svn-id: http://primefaces.googlecode.com/svn/showcase/trunk@11417 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Fixed typo

git-svn-id: http://primefaces.googlecode.com/svn/showcase/trunk@11422 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c