package/x11r7/xlib_libXfont: security version bump to 1.5.1

Fixes CVE-2015-1802, CVE-2015-1803, CVE-2015-1804
http://lists.x.org/archives/xorg-announce/2015-March/002551.html
http://lists.x.org/archives/xorg-announce/2015-March/002550.html

Also add hash file.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/x11r7/xlib_libXfont/xlib_libXfont.hash

@@ -0,0 +1,2 @@
+# From http://lists.x.org/archives/xorg-announce/2015-March/002551.html
+sha256	b70898527c73f9758f551bbab612af611b8a0962202829568d94f3edf4d86098	libXfont-1.5.1.tar.bz2

package/x11r7/xlib_libXfont/xlib_libXfont.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-XLIB_LIBXFONT_VERSION = 1.5.0
+XLIB_LIBXFONT_VERSION = 1.5.1
 XLIB_LIBXFONT_SOURCE = libXfont-$(XLIB_LIBXFONT_VERSION).tar.bz2
 XLIB_LIBXFONT_SITE = http://xorg.freedesktop.org/releases/individual/lib
 XLIB_LIBXFONT_LICENSE = MIT