GLib 2.38.2
glib/gspawn-win32-helper.c: Clean up a bit

Remove the parts about storing up the fd's in a data structure, but call
close() on the fd's.  However, retain the _get_osfhandle() check on the
fd's when we iterate through the fd's as on fd values in the iteration may
well be invalid fd's.  As a result, the invalid parameter handler is still
needed for newer Microsoft CRTs (8.0/2005+) for _get_osfhandle() to
make sure that the program does not abort when we check the validity of
fd's to be closed in the loop[1].

[1]: http://msdn.microsoft.com/en-us/library/ks2530z6%28v=vs.80%29.aspx
GDBusObjectManagerClient: keep the manager alive while firing signals

Handlers for the signals we emit might unref the object manager. Make
sure we keep it alive until we are done with it.

https://bugzilla.gnome.org/show_bug.cgi?id=719402