json-molder v0.5.0

• #populate() now checks if the properties declared in the __children child model-description object are also present in the "parent" model-description and throws and Error if not.
• For the sake of sane code structure, a "computedProperty" now gets the full molder instance passed in addition to the ever present preparedOrigin object. A "computedProperty" is now able to use the powers of the processing molder instance.
• #extractNamespace() method is now public (renamed from _extractNamespace to extractNamespace as well as removed the @private tag from the documentation) in order to be called on a molder instance regulary.