Log Message:
Update to libdvdnav version 4.1.3. libdvdnav is now maintained by the
mplayer project, and the next release after 0.1.10 (the one we're coming
from) was 4.1.1.

libdvdnav (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 pkg-config support
  * split dvdread to a separate tree; now you need to check it out
    and install it before building libdvdnav.
    In order to configure libdvdnav We need the executable dvdread-config
    somewhere in the PATH or explicitly specified to configure[2] with
    --with-dvdread-config=~/bin/dvdread-config

libdvdnav (4.1.2)
  * multiple build system fixes
  * added dvdnav_describe_title_chapters(title) to get title and chapters
    duration

libdvdnav (4.1.1)
  * added dvdnav_audio_stream_channels() to return number of channels
  * fixed dvdnav_time_search() in multi-angle dvds (but it still needs
    improvements)
  * added dvdnav_audio_stream_format() to identify the codec used
    in audio streams
  * starting DVD playback at specific title/part positions with
    dvdnav_{title,part}_play() works again
  * removed wrong SPU stream change event filter
    (fixes unwanted subtitles in the trailer of "Girl, interrupted", RC2)
  * fixed error "Expected NAV packet but none found." occuring sometimes
    on resume from menu