title: Morphia + GWT issue
body: <p>I have simple gwt maven project and I use morphia.
  I know that I must use dto objects in purposes of the client compilation code, because its not possible to use entityes in the client code?!Is that the right way?
  So I have DTO in my shared folder and morphia Entity in my server folder.</p>
  
  <p>Is there any way to use the entity class in the shared folder ?
  Because when I'm trying to do so I have [ERROR] Line 22: No source code is available for type <strong>**</strong> did you forget to inherit a required module?</p>
  
  <p>Thanks</p>