dutch & fix

git-svn-id: https://plugins.svn.wordpress.org/bp-group-documents/trunk@789759 b8457f37-d9ea-0310-8a92-e5e31aec5664
fix fatal error get_home_path

git-svn-id: https://plugins.svn.wordpress.org/bp-group-documents/trunk@793469 b8457f37-d9ea-0310-8a92-e5e31aec5664