title: How do I change the login URL using Tank auth?
body: <p>I have been looking around the Tank auth code to see how things are done, but it seems a little confusing to find out how to change the path of the default login.</p>
  
  <p>I wanted to change it to <code>groups/login</code> or <code>users/sign_in</code>, but that wasn't an easy task. I'm wondering whether I should change that from the routing file or any other file.</p>
  
  <p>Any idea how to get around with this little issue?</p>