Class name / file name mismatch for classes without properties

Consider this metaJSON definition:

``` javascript
[
   {
        "name": "base",
        "description": "Base class for all JSON Objects",
        "base-type": "object"
    }
]
```

This will generate a file called `Object.java` (Java for example) containing a class named `Base`. 

This class name / file name mismatch causes trouble in some programming languages and with most import statements.
