Changes within VLCKit between 2.0.0 and 2.1.0:
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The entire framework was relicensed to LGPL 2.1 or later as well as its
underlying playback modules.
Support for transcoding and streaming as well as DVD playback was not affected
by this move and stays under GPL until further notice.

New APIs:
- VLCStreamOutput:
  - support for subtitle transcoding
- VLCMedia:
  - extended media track information for bitrate, language, description, source
    aspect ratio, source aspect denominator, frame rate, frame rate denominator,
    and text encoding
  - added (BOOL)isMediaSizeSuitableForDevice to let VLCKit determine whether the
    current media is considered to be suitable for the current device or
    playback is discouraged. Will always return true on OS X devices.
  - added individual getters for all statistic values, so client application can
    fetch single values instead of having to process a NSDictionary with all the
    available values. The old API is still available and will stay.
- VLCMediaPlayer:
  - added support to enable, switch and disable video tracks
  - added setter/getter for SPU and audio delays
  - added setter/getter for the video scale factor
  - added support for the "adjust" video filter to manipulate contrast,
    brightness, hue, saturation and gamma on the fly
  - new interfaces to fetch names and IDs of audio, subtitle and video tracks

Deprecated APIs:
- VLCMediaPlayer:
  @property (readonly) NSUInteger fps;
    - use (float)fps instead.
  - (NSArray *)videoSubTitles;
    - use - (NSArray *)videoSubtitleNames; instead
  - (NSArray *)audioTracks;
    - use - (NSArray *)audioTrackNames; instead
  - (NSArray *)videoTracks;
    - use - (NSArray *)videoTrackNames; instead

Modified behavior:
- use of clang instead of llvm-gcc-4.2
- updated project file for Xcode 4.3 and later
- iOS Deployment target was raised to iOS 5.1
- dropped support for the PowerPC architecture
- Mac Deployment target was raised to OS X 10.7
- different logging behavior: to see any debug messages, the framework needs
  to be compiled in debug mode

MobileVLCKit features:
- added support for Opus
- slimmed binary by removing dysfunctional or irrelevant modules
- playback is paused if client app resigns active state
- playback resumes if client app is being active again
- idle state and screen sleep is prevented during playback

Removed APIs:
- VLCMediaList:
  - (id)initWithArray:(NSArray *)array;
- VLCMedia:
  - (void)setValue:(id)value forMeta:(NSString *)VLCMetaInformation;