Merge pull request #22149 from luxas/onedotsix

Automatic merge from submit-queue

Up to golang 1.6

A second attempt to upgrade go version above `go1.4`
Merge ASAP after you've cut the `release-1.2` branch and feel ready.
`go1.6` should perform slightly better than `go1.5`, so this time it might work
@gmarek @wojtek-t @zmerlynn @mikedanese @brendandburns @ixdy @thockin

cluster/images/etcd/build-etcd.sh

@@ -27,7 +27,7 @@ TAG=$1
 ARCH=$2
 TARGET_DIR=$3
 
-GOLANG_VERSION=${GOLANG_VERSION:-1.5.3}
+GOLANG_VERSION=${GOLANG_VERSION:-1.6.0}
 GOARM=6
 
 # Create the ${TARGET_DIR} directory, if it doesn't exist

cluster/mesos/docker/test/Dockerfile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.4.3
+FROM golang:1.6.0
 MAINTAINER Mesosphere <support@mesosphere.io>
 
 # docker.io is suppossed to be in backports, but it's not there yet.