title: Turn off phantomjs messages when running a casperjs script
body: <p>I am running the basic script with casperjs:</p>
  
  <p><a href="http://docs.casperjs.org/en/latest/quickstart.html" rel="nofollow">http://docs.casperjs.org/en/latest/quickstart.html</a> </p>
  
  <p>I see that my console output shows the following additional messages from phantomjs apart from the page's titles :</p>
  
  <blockquote>
    <p>2014-01-28 15:14:01.150 phantomjs[19493:110b] <em>*</em> WARNING: Method userSpaceScaleFactor in class NSView is deprecated on 10.7 and later. It should not be used in new applications. Use convertRectToBacking: instead.</p>
    
    <p>2014-01-28 15:14:04.050 phantomjs[19493:110b] CoreText performance note: Client called CTFontCreateWithName() using name "Palatino" and got font with PostScript name "Palatino-Roman". For best performance, only use PostScript names when calling this API.</p>
    
    <p>2014-01-28 15:14:04.050 phantomjs[19493:110b] CoreText performance note: Set a breakpoint on CTFontLogSuboptimalRequest to debug.</p>
  </blockquote>
  
  <p>Is there a way to turn these off so I can get a clean output?</p>