add missing Portuguese jQuery UI date picker (#13584)

jquery.ui.datepicker-pt.js is from
https://raw.github.com/jquery/jquery-ui/49f9b849b9c5023f13/ui/i18n/jquery.ui.datepicker-pt.js

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11686 e93f8b46-1217-0410-a6f0-8f06a7374b81
svn:eol-style native jquery.ui.datepicker-pt.js (#13584)


git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11687 e93f8b46-1217-0410-a6f0-8f06a7374b81