v0.2.0

Thanks to @JSensebe for his contributions!

Added

• Add Language.GALICIAN and Language.NORWEGIAN
  to correspond with additions to libretro.h.
• Add a live documentation website here.
  (#11)
• Allow ArrayVideoDriver.screenshot() to rotate the returned frame
  (#3)
• Add 16-bit pixel format support to ArrayVideoDriver.screenshot().
  (#5)

Changed

• BREAKING: Rename KeyboardState.return_ to KeyboardState.return_key
• BREAKING: Rename KeyboardState.break_ to KeyboardState.break_key

Fixed

• Fix Core.unserialize being unable to accept bytes objects.
  (#4)
• Fix an exception when a core sets its geometry before its initial AV info is fetched.
  (#6)
• Fix a crash when a core uses retro_led_interface.
  (#7)
• Fix an exception when passing a frame pitch inconsistent with the configured video format.
  (#8)