title: MarkerCluster V3 stopped working properly
body: <p>I am using MarkerCluster_compiled.js from github. But while the logic works, its graphics started failing from yesterday. </p>
  
  <p>The problem seems to be caused by "<a href="https://google-maps-utility-library-v3.googlecode.com/svn">https://google-maps-utility-library-v3.googlecode.com/svn</a>" returns a 404, and all cluster marker images have dependency on this url. (This google map v3 svn url is still in google's public domain)</p>
  
  <p>Seems to me the impact of this particular "404" is not trivial, as I see people's live sites have been affected. I am surprised this problem could happen to Google.   </p>
  
  <p>For example:
  The marker-clusterer's advanced_example on github.io no longer work (I can't post the link due to my low reputation).</p>
  
  <p>Looking forward to see Google fix the issue or any other suggestion.</p>