Merge pull request #1800 from jperrin/master

Add centos 6.8 image, monthly updates for 6 and 7

library/centos

@@ -1,14 +1,14 @@
 # maintainer: The CentOS Project <[email protected]> (@CentOS)
-# Build date 20160516
+# Build date 20160602
 
 # CentOS 7 rolling builds
-latest: git://github.com/CentOS/sig-cloud-instance-images@0ab04b50ac631d1371a2241171f19655c2870020 docker
-centos7: git://github.com/CentOS/sig-cloud-instance-images@0ab04b50ac631d1371a2241171f19655c2870020 docker
-7: git://github.com/CentOS/sig-cloud-instance-images@0ab04b50ac631d1371a2241171f19655c2870020 docker
+latest: git://github.com/CentOS/sig-cloud-instance-images@2ba488ba6746fe664fa849a1c78e3204b7d3c90e docker
+centos7: git://github.com/CentOS/sig-cloud-instance-images@2ba488ba6746fe664fa849a1c78e3204b7d3c90e docker
+7: git://github.com/CentOS/sig-cloud-instance-images@2ba488ba6746fe664fa849a1c78e3204b7d3c90e docker
 
 # CentOS 6 rolling builds
-centos6: git://github.com/CentOS/sig-cloud-instance-images@c2f6c5329d41005d5f9f14274e2f490098ec9b21 docker
-6: git://github.com/CentOS/sig-cloud-instance-images@c2f6c5329d41005d5f9f14274e2f490098ec9b21 docker
+centos6: git://github.com/CentOS/sig-cloud-instance-images@d8be74eb849905ece48183c31f1af7e91dd56bce docker
+6: git://github.com/CentOS/sig-cloud-instance-images@d8be74eb849905ece48183c31f1af7e91dd56bce docker
 
 # CentOS 5 rolling builds
 centos5: git://github.com/CentOS/sig-cloud-instance-images@4bf8330498e1c10cf365aff31d2a8a5c3254c2cf docker
@@ -28,6 +28,10 @@ centos7.1.1503: git://github.com/CentOS/sig-cloud-instance-images@bc561dfdd671d6
 centos7.0.1406: git://github.com/CentOS/sig-cloud-instance-images@f1d1e0bd83baef08e257da50e6fb446e4dd1b90c docker
 7.0.1406: git://github.com/CentOS/sig-cloud-instance-images@f1d1e0bd83baef08e257da50e6fb446e4dd1b90c docker
 
+# 6.8
+centos6.8: git://github.com/CentOS/sig-cloud-instance-images@f32666d2af356ed6835942ed753a4970e18bca94 docker
+6.8: git://github.com/CentOS/sig-cloud-instance-images@f32666d2af356ed6835942ed753a4970e18bca94 docker
+
 # 6.7
 centos6.7: git://github.com/CentOS/sig-cloud-instance-images@d0b72df83f49da844f88aabebe3826372f675370 docker
 6.7: git://github.com/CentOS/sig-cloud-instance-images@d0b72df83f49da844f88aabebe3826372f675370 docker