title: How read properties from mule-app.properties in standalone deploy?
body: <p>In my mule application I defined some properties in mule-app.properties file, so I can change it "on the fly" on CloudHub.
  Deploying on CloudHub all is right, and to get the properties on java class I used:
  <code>System.getProperty("propertyName")</code>.</p>
  
  <p>Now my problem is that deploying the application on mule standalone, when It tries to use a property in a java class it returns <code>null</code> even if on xml file I can use properties with the usual <code>${propertyName}</code>.</p>
  
  <p>Is there any other way to access these properties from a java class?</p>