libretro-nestopia-1.50~git20190921-bp154.1.22

- Update to version 1.50~git20190921
- Remove info file nestopia.libretro because it is provided in
  libretro-core-info package

- Update to v1.49
  * Shell: added more palettes to extras
  * Shell: Game-specific custom palettes
  * Scale factors up to 8x
  * Added option to enable overclocking
  * Added rewind controls to gamepad
  * Famicom Mic support
  * Optional JACK Audio support (McKayJT)
  * Added .wav sample loading
  * Changes: Separated GTK+ and SDL input settings
  * Removed deprecated functions from UI
  * Use GTK+ OpenGL widget for GUI (Wayland support)
  * Reworked Alternate Speed/Fast-Forward
  * Allow mapping more than 9 joysticks (Lou-Cipher)
  * Restructured build system, separated SDL and GTK builds
  * Curors options split int normal and special cursor options
  * Fixed automatc ROM patching, improved patching function

- Initial package, version 0~20170910.3eacbb2 (no proper versioning
  done by upstream).