title: Create package of latest revisions in Github
body: <p>I have looked for the 'patch' system but I don't think this is what I want. I've also done a little research but I am not sure how I should ask the question.</p>
  
  <p>I want to make a package with only the modified files of the latest revisions on Github.</p>
  
  <p>I am wondering if there's a little application or some sort of commands I could use instead of going into each revisions and track files by files which have been modified to then pack them all into a zip/tar.gz file.</p>
  
  <p>Reason we want to do this is obviously update a lot of websites using an older version, without having the trouble to go look up for each files that we're modified and pack them 'by hand'</p>
  
  <p>Thanks.</p>