* add new library - [https://code.google.com/p/serf/ serf]
 * needed for [http://subversion.apache.org/docs/release-notes/1.8.html#neon-deleted upcoming (1.8.x)] subversion version


git-svn-id: file:///var/svn/freetz/trunk@10618 149334a1-2f27-0410-a3b9-fc62619ac1e6