Not all frank elements are in the Frank!Doc

Right now only elements that are a child of a root element are included in the Frank!Doc. Because of this the framework now contains lots of dummy methods such as:
```
// Dummy setter to allow JmsRealms being added to Configurations via FrankDoc.xsd
public void registerJmsRealm(JmsRealm realm) {
JmsRealmFactory.getInstance().registerJmsRealm(realm);
}

// Dummy method to include monitoring in the Frank!Doc.
public void registerMonitoring(MonitorManager factory) {
}
```

In order to avoid these methods I propose that we change the required rules in the digester-rules.xml from relative to absolute paths.

From:
``
To:
``

Note the absolute path/pattern, enforcing this element to be a child of Configuration, even though there is no setter available for this element.