revert docker version

Author: Anandkumar Patel

ansible/group_vars/alpha-sauron.yml

@@ -10,7 +10,7 @@ weave_path: "/bin/weave"
 docker_path: "/bin/docker"
 
 dockerfile_pre_install_commands: [
-  "curl -L https://get.docker.com/builds/Linux/x86_64/docker-1.10.3 -o {{ docker_path }}",
+  "curl -L https://get.docker.com/builds/Linux/x86_64/docker-1.6.2 -o {{ docker_path }}",
   "chmod a+x {{ docker_path }}",
   "curl -L https://github.com/weaveworks/weave/releases/download/v1.5.0/weave -o {{ weave_path }}",
   "chmod a+x {{ weave_path }}"