Add jquery browser plugin for backward compat

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9543 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Implemented file type and file size restrictions, pending is file count limit for upload.

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@9544 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c