What's new in at-spi2-core 2.47.1:
* The meson options -Dx11 and -Dintrospection are now implemented with
  meson features - https://mesonbuild.com/Build-options.html#features

  Instead of accepting values of "yes/no/auto", they take
  "enabled/disabled/auto".  Please change your build scripts
  accordingly if you use these options.

* Use gi-docgen to generate documentation.

* Register key grabs using the focused window, rather than the root window.
  This should prevent the window from losing focus when a key grab is used.

* atk-adaptor: Handle sockets in GetChildren.

* Improve documentation of the dbus interfaces.

* Various code clean-ups. Some unused code has been removed.