What's new in at-spi2-core 2.49.91:

* collection: Avoid locking up if an object has a very large child count

* Fix possible NULL pointer dereference when deregistering an event listener.

* Various fixes for the new key grabbing API.

* Don't wait for a reply when registering or deregistering keystroke
  listeners.

* Add a meson option to exclude the gtk2 atk-bridge module.