Update sshd-core to version 0.8.0 from version 0.7.0. Update mina-core from version 2.0.4 to version 2.0.7.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1448036 13f79535-47bb-0310-9956-ffa450edef68
Add missing license header.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1448071 13f79535-47bb-0310-9956-ffa450edef68