title: git merge with renamed files
body: <p>I have a large website that I am moving into a new framework and in the process adding git. The current site doesn't have any version control on it.</p>
  
  <p>I started by copying the site into a new git repository. I made a new branch and made all of the changes that were needed to make it work with the new framework. One of those steps was changing the file extension of all of the pages.</p>
  
  <p>Now in the time that I have been working on the new site changes have been made to files on the old site. So I switched to master and copied all of those changes in.</p>
  
  <p>The problem is when I merge the branch with the new framework back onto master there is a conflict on every file that was changed on the master branch.</p>
  
  <p>I wouldn't be to worried about it but there are a couple of hundred files with changes. I have tried <code>git rebase</code> and <code>git rebase --merge</code> with no luck.</p>
  
  <p>How can I merge these 2 branches without dealing with every file?</p>