http://source.sakaiproject.org/release/2.5.2/sakai-2-5-2/sakai-demo-2.5.2.zip
http://source.sakaiproject.org/release/2.5.2/sakai-2-5-2/sakai-demo-2.5.2.tar.gz
http://source.sakaiproject.org/release/2.5.2/sakai-2-5-2/sakai-bin-2.5.2.zip
http://source.sakaiproject.org/release/2.5.2/sakai-2-5-2/sakai-bin-2.5.2.tar.gz