title: SonarQube snapshot cleanup
body: <p>we are running a Sonarqube 6.0 instance and have some questions about the snapshot cleanup. We are still using the default values like:</p>
  
  <p>"Keep only one snapshot a month after - Default: 52"</p>
  
  <p>But we still have more than one snapshot per month for e.g. May 2015:</p>
  
  <p>Mai     26  13:58   9.11.0.0-1-SNAPSHOT<br>
          12  19:58   9.10.0.0-3-SNAPSHOT<br>
          12  13:58   9.10.0.0-2-SNAPSHOT</p>
  
  <p>Does anyone knows how to get around this? We have no more space on the database ;-)</p>
  
  <p>Thanks</p>