Merge pull request #2672 from dgageot/golang-1.5.2

FIX #2670 Upgrade to go 1.5.2

CONTRIBUTING.md

@@ -18,7 +18,7 @@ guidelines](https://github.com/docker/docker/blob/master/CONTRIBUTING.md).
 
 The requirements to build Machine are:
 
-1.  A running instance of Docker or a Golang 1.5 development environment
+1.  A running instance of Docker or a Golang 1.5.2 development environment
 2.  The `bash` shell
 3.  [Make](https://www.gnu.org/software/make/)
 
@@ -29,7 +29,7 @@ To build the `docker-machine` binary using containers, simply run:
     $ export USE_CONTAINER=true
     $ make build
 
-## Local Go 1.5 development environment
+## Local Go development environment
 
 Make sure the source code directory is under a correct directory structure to use Go 1.5 vendoring;
 example of cloning and preparing the correct environment `GOPATH`:

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.5.1
+FROM golang:1.5.2
 
 RUN go get  github.com/golang/lint/golint \
             github.com/mattn/goveralls \

Godeps/Godeps.json

@@ -1,6 +1,6 @@
 {
 	"ImportPath": "github.com/docker/machine",
-	"GoVersion": "go1.5.1",
+	"GoVersion": "go1.5.2",
 	"Packages": [
 		"github.com/docker/machine",
 		"github.com/docker/machine/cmd",

circle.yml

@@ -8,7 +8,7 @@ machine:
     # - sudo apt-get install -y virtualbox
 
   post:
-    - gvm install go1.5.1 -B --name=stable
+    - gvm install go1.5.2 -B --name=stable
 
   environment:
   # Convenient shortcuts to "common" locations