Update to 0.7.0.
Release notes: http://community.kde.org/Phonon/Releases/VLC/0.7.0
This commit introduces a new build-time dependency on pkg-config, necessary
to properly detect libvlc. A patch to correctly support the non-pkg-config
code path has been submitted upstream.
Note that multimedia/vlc needs to be at least at version 2.1.0_6,4 (r333434)
for phonon-vlc to manage to find libvlc and actually build.