* Add new getOriginID/SetOriginID method for Messages
* Add new getJid() method for Protocol
* Return Protocol instances when using certain Node methods
* getTagAttr() accepts now a Namespace to filter
* Return Protocol/Message instance when using getTag()
* Add new XEP Namespaces
Attention:
The API for getTag() changed in the way that it always returns a Protocol or Message instance now instead of a Node instance before. This means 'to' and 'from' attributes return now a JID instance instead of a string