title: Git untracked files preventing checkout
body: <p>I'm on the branch <code>stage</code> and i have capitalized all filenames, i want to checkout to branch <code>develop</code> but this error appears.</p>
  
  <p>The following untracked working tree files would be overwritten by checkout:</p>
  
  <pre><code>application/controllers/cast_roles.php
          application/controllers/home_page_sliders.php
          application/controllers/invite_friend.php
          application/controllers/signup_page_movies.php
          application/controllers/special_users.php
          application/controllers/upload_media.php
  </code></pre>
  
  <p>These files are there but they've been capitalized.</p>
  
  <p>e.g.</p>
  
  <pre><code>application/controllers/Cast_roles.php
  application/controllers/Home_page_sliders.php
  </code></pre>
  
  <p>How do i solve?  Is there a way to remove file case sensitive?</p>