Log Message:
Update to phonon-backend-vlc 0.7.0

* Support VLC 2.1.0's upcoming appid API setting more application
  information for PulseAudio.
* Reduce performance overhead in audio/video-less setups by not loading
  dummy plugins at all and removing unnecessary dynamic loading logic.
* Internal API redesign to ensure important abstract code is executed.
* Partially backed new MediaController subtitle API (explicit font setting
  is not working as expected in VLC 2.0)
* Implement equalizer Effect support. This is only going to appear in
  VLC 2.2, so the feature remains not present when built against lower
  versions.
* When building against VLC 2.1 the new video title API is used to disable
  displaying the video title when a video starts to play. This is going to
  replace the manually set argument for libvlc_new in the long run.
* Phonon VLC is now the highest rated backend due to its high quality.
  This means that whenever an additional backend is installed and the user
  did not choose a preferred backend Phonon VLC will be used by default.
Bug Fixes
* Stride calculation for surface painting is done correctly now (affects
  VideoWidget inside QProxyWidget)
* Queued tracks are now correctly played when the current track is about
  to end.
* DirectSound and CoreAudio are no longer marked as advanced devices. This
  makes auto-selection of devices work on Windows and OSX.
* Track selection on AudioCds via the MediaController is now working as
  intended.
* Prevent libpa crashes due to empty user-agent information.
* Reduce scope of non-reentrant PulseAudio envrionment setup. Limited due
  to missing API backing in libvlc.
* Subtitle selection now uses correct index mapping preventing off-by-one
  issues.