golang: Go 1.6

1.6.X is current stable series of Go.

https://golang.org/doc/go1.6
https://golang.org/doc/devel/release.html#go1.6

So switch helloweb and default golang to it.

/reviewed-by TrustMe  (tested on helloworld)

component/golang/buildout.cfg

@@ -3,7 +3,7 @@
 parts = golang
 
 [golang]
-<= golang15
+<= golang16
 
 
 [golang-common]
@@ -32,3 +32,13 @@ md5sum = a04d570515c46e4935c63605cbd3a04e
 # go1.5 needs go1.4 to bootstrap
 environment-extra =
   GOROOT_BOOTSTRAP=${golang14:location}
+
+
+[golang16]
+<= golang-common
+url = https://storage.googleapis.com/golang/go1.6.2.src.tar.gz
+md5sum = d1b50fa98d9a71eeee829051411e6207
+
+# go1.6 needs go1.4 to bootstrap
+environment-extra =
+  GOROOT_BOOTSTRAP=${golang14:location}

component/helloweb/buildout.cfg

@@ -89,7 +89,7 @@ input   = inline:
 recipe  = slapos.recipe.cmmi
 path    = ${helloweb-repository:location}/go/
 
-go      = ${golang15:location}/bin/go
+go      = ${golang16:location}/bin/go
 configure-command = :
 make-binary =
 make-targets= cd ${:path} &&