glib2 windows: upgrade bundled GLib

3.2.7  ->
3.2.12
pango windows: upgrade bundled HarfBuzz and Pango

HarfBuzz:
  * 0.9.25
  * 0.9.26

Pango:
  * 1.36.1
  * 1.36.2
gdk3 windows: upgrade bundled GTK+

  * 3.10.6 ->
  * 3.10.7
gdk_pixbuf2 windows: upgrade bundled gdk-pixbuf

  * 2.30.2 ->
  * 2.30.6
poppler windows: upgrade bundled Poppler

  * 0.24.4 ->
  * 0.24.5
gstreamer windows: upgrade bundled GStreamer

  * 1.2.1 ->
  * 1.2.3
clutter windows: upgrade bundled Cogl and Clutter

Cogl:
  * 1.16.0 ->
  * 1.16.2

Clutter:
  * 1.16.2 ->
  * 1.16.4
clutter-gstreamer windows: upgrade bundled Clutter-GStreamer

  * 2.0.8  ->
  * 2.0.10
gtksourceview3 windows: upgrade bundled GtkSourceView

  * 3.10.1 ->
  * 3.10.2