title: Allow/deny users from running a build configuration in Teamcity
body: <p>I have a build chain of 4 build configurations, which correspond to different teams' tasks. The idea behind the configurations is this:</p>
  
  <ol>
  <li>Run the build itself</li>
  <li>Move build to staging</li>
  <li>QA approved</li>
  <li>Release</li>
  </ol>
  
  <p>Each of those configurations have different responsible people. People not responsible for a given configuration should not be allowed to run it.</p>
  
  <p>I know I can define roles on project-level, but here I need to define it on a build configuration-level. Is that possible?</p>
  
  <p>Thanks</p>