title: start SonarQube server with specific jdk
body: <p>Is there a way to start the SonarQube server (v. 3.7.4) with an specific jdk?</p>
  
  <p>My case: My java-home is set to jdk 1.8, but SonarQube server has some known problems with 1.8. So I want to start the server with jdk 1.7 (without setting my java-home to 1.7).
  I couldn't find anything in the bat-files.</p>
  
  <p>OS: Windows 7; SonarQube server version: 3.7.4</p>