Added support for jms serializer
Added test Documents
Added some test code that generates a basic version of entities descriptor using jms serializer
Added entitiy descriptor object
Setted attributes valid until and id
Added signed info
Added var annotations and typehints
Moved signature to Dsig namespace
Moved entity descriptor classes to metadata namespace
Moved all classes to XmlDocument since Saml is namespace by itself
Added todo
Added todo
Added comment
Added todo
Added authnrequest