title: PlayFramework memory setting options are not respected
body: <p>I have a Play Framework application that I want to run on production mode but whenever I run <code>activator start -mem 512</code>  or <code>activator start -J-Xms512m -J-Xmx512m</code> I get errors about JVM not being able to allocate enough memory. The odd thing is that error logs indicate that arguments passed on to jvm was:</p>
  
  <p><code>-Xms1024m -Xmx1024m -XX:ReservedCodeCacheSize=128m -Duser.dir=/home/oguz/dev/rhymo-server/target/universal/s$</code> </p>
  
  <p>but when I print the command information from the activator bash script I get:</p>
  
  <p><code>java -Dactivator.home=/home/oguz/frameworks/activator-1.2.12 -Xms512m -Xmx512m -XX:MetaspaceSize=64m -XX:MaxMetaspaceSize=256m -jar /home/oguz/frameworks/activator-1.2.12/activator-launch-1.2.12.jar start
  </code></p>
  
  <p>It seems that play is running the right command but somewhere along the lines the arguments get discarded. What is wrong here? Am I forgetting something?</p>