Unit tests in subdirecties do not execute

Hi.  The following line in the pom.xml of generated projects only executes unit tests place directly in the `src/test/java/{package.name}/unit` directory: 

``` xml
            <include>**/unit/*Test*.java</include>
```

The fix is to change the line to: 

``` xml
            <include>**/unit/**/*Test*.java</include>
```

The change is adding the extra `**/` 
