A new serialization attribute saxon:double-space is available. The value is a space-separated list
of element names; the effect is to cause an extra blank line to be inserted in the output before the start tag of these
elements. The option has no effect unless indent="yes" is set.
Saxon now honours a request to output using UTF-16 with no byte-order-mark. Perviously a byte-order-mark was inserted (by the Java IO library) whether requested or not.
