Support runner options for Docker Machine

tasks/install-docker-machine.yml

+---
+
+- name: Get Docker Machine
+  get_url:
+    url: "https://github.com/docker/machine/releases/download/{{ docker_machine_version | default('v0.15.0') }}/docker-machine-{{ ansible_system }}-{{ ansible_architecture }}"
+    dest: /tmp/docker-machine
+
+- name: Install Docker Machine
+  command: 'install /tmp/docker-machine {{ docker_machine_binary_dest }}'