Instance members of objects within a namespace not in correct section

It seems as though instance members of a class/object within a namespace are not organized correctly on the output documentation. I am running the very latest commit to date: https://github.com/documentationjs/documentation/commit/f07285a9200162908efa5dfc3076cb32d1425c6e

See example below:

```javascript
/**
* A namespace.
* @namespace MyNamespace
*/

/**
* This class has an issue since it is in a namespace
* @class FooClass
* @memberof MyNamespace
*/
class FooClass {
/**
* Function description for foo
*/
bar() {}
}

/**
* This class has no issue as it is not in a namespace
* @class BarClass
*/
class BarClass {
/**
* Function description for foo
*/
baz() {}
}
```

HTML Output:

Notice how the `bar` function is not nested under its class of `FooClass`. I would expect it would be nested within the `FooClass` member of the `MyNamespace` namespace