title: Issue when creating my first CocoaPod
body: <p>I am trying to create my first pod and is following this tutorial:
  <a href="http://www.sitepoint.com/creating-cocoapods/">http://www.sitepoint.com/creating-cocoapods/</a></p>
  
  <p>But when I do:</p>
  
  <pre><code>pod spec lint GLLingoManager.podspec
  </code></pre>
  
  <p>I get following error:</p>
  
  <pre><code>$ pod spec lint GLLingoManager.podspec
  
   -&gt; GLLingoManager (0.1.0)
      - ERROR | [OSX] unknown: Encountered an unknown error ([!] /Applications/Xcode.app/Contents/Developer/usr/bin/git clone https://github.com/xeppen/GLLingoManager.git /var/folders/v6/tdz6zc7j10j_k0pc1vy627zm0000gn/T/d20160504-76297-8l71fj --template= --single-branch --depth 1 --branch 0.1.0
  
  Cloning into '/var/folders/v6/tdz6zc7j10j_k0pc1vy627zm0000gn/T/d20160504-76297-8l71fj'...
  warning: Could not find remote branch 0.1.0 to clone.
  fatal: Remote branch 0.1.0 not found in upstream origin
  ) during validation.
  
  Analyzed 1 podspec.
  
  [!] The spec did not pass validation, due to 1 error.
  </code></pre>
  
  <p>I dont understand what is wrong. What should I do?</p>