gdk-pixbuf: security bump to version 2.36.10

gdk-pixbuf: security bump to version 2.36.10

Fixes the following security issues:

CVE-2017-2862 - An exploitable heap overflow vulnerability exists in the
gdk_pixbuf__jpeg_image_load_increment functionality of Gdk-Pixbuf 2.36.6.  A
specially crafted jpeg file can cause a heap overflow resulting in remote
code execution.  An attacker can send a file or url to trigger this
vulnerability.

CVE-2017-2870 - An exploitable integer overflow vulnerability exists in the
tiff_image_parse functionality of Gdk-Pixbuf 2.36.6 when compiled with
Clang.  A specially crafted tiff file can cause a heap-overflow resulting in
remote code execution.  An attacker can send a file or a URL to trigger this
vulnerability.

CVE-2017-6311 - gdk-pixbuf-thumbnailer.c in gdk-pixbuf allows
context-dependent attackers to cause a denial of service (NULL pointer
dereference and application crash) via vectors related to printing an error
message.

The host version now needs the same workaround as we do for the target to
not pull in shared-mime-info.

Also add a hash for the license file while we're at it.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>