title: ERROR: cannot start RubyMine. No JDK found.  JDK Version? + desktop link
body: <p>ERROR: cannot start RubyMine.
  No JDK found. Please validate either RUBYMINE_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation.</p>
  
  <p>I'm not sure what JDK version number to use to download it?</p>
  
  <p>Also how to create a desktop link in 11.10?</p>