What's new in at-spi2-core 1.91.92:

* Fixed atspi_table_get_column_header and atspi_value_set_current_value.

* Removed dbus-glib dependency; libatspi now includes a copy of dbus-gmain.c
  modified to fix a crash (FDO#35115).  Session management code has been
  ported to gdbus.

* Fixed a crash when deregistering a keystroke listener.

* Reworked accessibility bus management (BGO#644851).

* Fixed a possible sign issue with state sets.