Log Message:
Update glib2 to 2.42.1

Overview of changes in GLib 2.42.1
==================================

* This release disables deprecation warnings by default

* Bugs fixed:
 728256 gcredentials: add NetBSD support (no more patch-gio_gioenums.h)
 736806 gtask: Fix reference count loop causing leaks
 737143 Include <stdint.h> in glib/valgrind.h
 738170 g_byte_array_new_take() doesn't initialize array->alloc
 738197 g_cond_timed_wait() doesn't time out on Mac OS X

* Translation updates:
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