FreeBSD fixes



git-svn-id: https://svn.ntop.org/svn/ntop/trunk/nDPI@6030 a02cd0c1-8e76-42e1-a119-56f9641475e2
Fix for non-FreeBSD systems


git-svn-id: https://svn.ntop.org/svn/ntop/trunk/nDPI@6031 a02cd0c1-8e76-42e1-a119-56f9641475e2
Added Spotify protocol support


git-svn-id: https://svn.ntop.org/svn/ntop/trunk/nDPI@6032 a02cd0c1-8e76-42e1-a119-56f9641475e2