Do not assume that parser is namespace-unaware

[dubinsky]

scala.xml.parsing.FactoryAdapter assumes that namespace declarations are passed into the startElement() methods as xmlns attributes, and does not override startPrefixMapping() at all.

As a result, Scala XML parsing can not be done using namespace-aware parser, which is needed - for instance - to handle XInclude.

[ashawley]

Sounds like a change worth making. It wouldn't break binary compatibility of a public method, so we could include in 2.1.0 release? We wouldn't need to wait until a 3.0 release?

[dubinsky]

Sounds like a change worth making. It wouldn't break binary compatibility of a public method, so we could include in 2.1.0 release? We wouldn't need to wait until a 3.0 release?

Probably won't break compatibility. I plan to start on this after the handling of comments and other lexical things is complete.