title: Suppress Gradle deprecation warnings
body: <p>After migrating a Gradle-based project to Gradle version 4.0-rc-1 some deprecation warnings are displayed in the build output. Because the deprecated methods are used by Gradle plugins I have no control over fixing the warnings. The Gradle documentation and help have no information about disabling such warnings.</p>
  
  <p><em>How can Gradle deprecation warnings be suppressed?</em></p>