sync to commit e4f394e on github

git-svn-id: https://plugins.svn.wordpress.org/hum/trunk@1045865 b8457f37-d9ea-0310-8a92-e5e31aec5664
add pfefferle as contributor in readme

git-svn-id: https://plugins.svn.wordpress.org/hum/trunk@1045868 b8457f37-d9ea-0310-8a92-e5e31aec5664