Convert to multi language, add Dutch pack - Roy Janssen

git-svn-id: https://plugins.svn.wordpress.org/wp-page-widget/trunk@915523 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme.txt to reflex tested version

git-svn-id: https://plugins.svn.wordpress.org/wp-page-widget/trunk@915526 b8457f37-d9ea-0310-8a92-e5e31aec5664