* Added XStream.toXML(OutputStream) and XStream.fromXML(InputStream).
* Ability to prevent fields from being serialized by calling XStream.omitField()
or by implementing Mapper.shouldSerializeMember().
* Added Converter for Enum, EnumMap and EnumSet
* XSTR-186: Added BeanConverter (contributed by Andrea Aime)
* XSTR-246: Added ISO8601SqlTimestampConverter (contributed by Cheong, Chung-Onn)
* XSTR-215: Fixed support for IBM JVM (contributed by Gabor Liptak)