Update docker-library images

- `drupal`: 8.0.0-beta14 (docker-library/drupal#6)
- `mysql`: 5.7.8-rc
- `wordpress`: 4.2.4

library/drupal

@@ -4,7 +4,7 @@
 7: git://github.com/docker-library/drupal@fc7b306913e96ced8e28d23fa47bb9ee19e8f427 7
 latest: git://github.com/docker-library/drupal@fc7b306913e96ced8e28d23fa47bb9ee19e8f427 7
 
-8.0.0-beta13: git://github.com/docker-library/drupal@6d662e039b3a3bfbb042f3e541b427495bac62c4 8
-8.0.0: git://github.com/docker-library/drupal@6d662e039b3a3bfbb042f3e541b427495bac62c4 8
-8.0: git://github.com/docker-library/drupal@6d662e039b3a3bfbb042f3e541b427495bac62c4 8
-8: git://github.com/docker-library/drupal@6d662e039b3a3bfbb042f3e541b427495bac62c4 8
+8.0.0-beta14: git://github.com/docker-library/drupal@4fb3024cae477daa93b0e169b1c909cc8bfda869 8
+8.0.0: git://github.com/docker-library/drupal@4fb3024cae477daa93b0e169b1c909cc8bfda869 8
+8.0: git://github.com/docker-library/drupal@4fb3024cae477daa93b0e169b1c909cc8bfda869 8
+8: git://github.com/docker-library/drupal@4fb3024cae477daa93b0e169b1c909cc8bfda869 8

library/mysql

@@ -8,6 +8,6 @@
 5: git://github.com/docker-library/mysql@14fb0f936d027acbd2abd8e6b8704388a22877a8 5.6
 latest: git://github.com/docker-library/mysql@14fb0f936d027acbd2abd8e6b8704388a22877a8 5.6
 
-5.7.7-rc: git://github.com/docker-library/mysql@b4a2bba171214eadf25aff14a13953b64237f5d8 5.7
-5.7.7: git://github.com/docker-library/mysql@b4a2bba171214eadf25aff14a13953b64237f5d8 5.7
-5.7: git://github.com/docker-library/mysql@b4a2bba171214eadf25aff14a13953b64237f5d8 5.7
+5.7.8-rc: git://github.com/docker-library/mysql@4df6cba7a1f3e7d586db0b66864c9d3b1a866a4e 5.7
+5.7.8: git://github.com/docker-library/mysql@4df6cba7a1f3e7d586db0b66864c9d3b1a866a4e 5.7
+5.7: git://github.com/docker-library/mysql@4df6cba7a1f3e7d586db0b66864c9d3b1a866a4e 5.7

library/wordpress

@@ -1,15 +1,15 @@
 # maintainer: InfoSiftr <[email protected]> (@infosiftr)
 
-4.2.3-apache: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
-4.2.3: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
-4.2-apache: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
-4.2: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
-4-apache: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
-apache: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
-4: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
-latest: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 apache
+4.2.4-apache: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
+4.2.4: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
+4.2-apache: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
+4.2: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
+4-apache: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
+apache: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
+4: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
+latest: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d apache
 
-4.2.3-fpm: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 fpm
-4.2-fpm: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 fpm
-4-fpm: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 fpm
-fpm: git://github.com/docker-library/wordpress@62313377280ec6a44525910dcb8ed78bf6313092 fpm
+4.2.4-fpm: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d fpm
+4.2-fpm: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d fpm
+4-fpm: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d fpm
+fpm: git://github.com/docker-library/wordpress@a8488d28776255e61b9cb37a9d7f84dadcc3457d fpm