Adapt generator to create valid class names for java generation

```
We want to be able to input a name for the questionnaire that has spaces and 
punctuation, so we have all the freedom in naming. When generating to a java 
class, we want the generator to be able to reduce the name of the questionnaire 
to a valid class name (CamelCase).
```

Original issue reported on code.google.com by `eugen.sc...@gmail.com` on 3 Dec 2012 at 6:29
