title: using get_url with ansible 2.0.2 to download package
body: <p>i tried to download a package with get_url ansible but i have a problem. The url contain some variables so i wrote like this:</p>
  
  <p>my playbook :</p>
  
  <pre><code>- name: download package
     vars:
       variable1: "foo"
       variable2: "baar"
       downloadurl:"http://example.com/{{variable1}}/path/{{variable2}}.tar.gz"
  
     tasks:
     - downloadPackage
  </code></pre>
  
  <p>and in the main.yml of downloadPackage</p>
  
  <pre><code>---
  - name: downloadPackage
    get_url: url={{downloadurl}} dest=dest/to/path
  </code></pre>
  
  <p>i difined a variable(i tried both):</p>
  
  <pre><code>downloadurl: http://example.com/{{variable1}}/path/{{variable2}}.tar.gz
   downloadurl: "http://example.com/{{variable1}}/path/{{variable2}}.tar.gz"
  </code></pre>
  
  <p>but i couldn't download the package.</p>