Log Message:
Update to libdvdread 4.1.3. This is a fun one, as dvdread/dvdnav is now
maintained by the mplayer project and according to the changelog, this
dvdread package was split out from dvdnav in 4.1.3. Check the ChangeLog
in the distfile for the full drama.

libdvdread (4.1.3)
  * an embarassing amount of fixes regarding potential memory and resource
      leaks (patches contributed by Erik Hovland)
  * added dvdread-config (dvdnav-config's younger brother)
  * added pkgconfig support
  * split dvdread to a separate tree