Overview of Changes from GLib 2.21.2 to GLib 2.21.3
===================================================

* GMappedFile is refcounted now

* Mainloop: It is now possible to set per-thread default contexts,
  with g_main_context_push_thread_default.

* glib-mkenums supports a @basename@ substitution, in addition
  to @filename@.

* GIO:
 - Vfs implementations can support storing of per-file metadata.
 - GCancellable can now be subclassed.
 - Unmount and eject methods now optionally allow interaction, via
   variants that take a GMountOperation object.

* Bugs fixed:
 556706 Inconsistent help arguments -h, -?
 579449 FileChoosers no longer work if an idle handler is active
 579933 mainloop FD_CLOEXEC has a race condition
 579984 alternate GMainContext support
 585937 gio/gsocket.c (glib 2.21.2) does not compile (Windows/mingw)
 586675 Runtime library location
 586797 Add GCancellables to GSocket ops
 586868 g_filename_complete_get_completions doesn't always return...
 587415 g_resolver_lookup_by_name_finish returns a freed list
 587434 regression tests fail, at least on x86_64
 586928 Avoid g++ warning in g_error()

* Updated translations:
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