package/apache: security bump to version 2.4.16

Fixes CVE-2015-3183, CVE-2015-3185, CVE-2015-0253, CVE-2015-0228
http://marc.info/?l=apache-httpd-announce&m=143704705330655&w=2

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

package/apache/apache.hash

@@ -1,2 +1,2 @@
-# From http://www.apache.org/dist/httpd/httpd-2.4.12.tar.bz2.sha1
-sha1	bc4681bfd63accec8d82d3cc440fbc8264ce0f17	httpd-2.4.12.tar.bz2
+# From http://www.apache.org/dist/httpd/httpd-2.4.16.tar.bz2.sha1
+sha1	9963e7482700dd50c53e47abfe2d1c5068875a9c	httpd-2.4.16.tar.bz2

package/apache/apache.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-APACHE_VERSION = 2.4.12
+APACHE_VERSION = 2.4.16
 APACHE_SOURCE = httpd-$(APACHE_VERSION).tar.bz2
 APACHE_SITE = http://archive.apache.org/dist/httpd
 APACHE_LICENSE = Apache-2.0