------
* Revert unused namespace cleanup change to serialization it generates
less optimal output in certain cases.
* Minor updates to :mod:`~eulxml.xmlmap.eadmap`:
* Added mapping for `xlink:show` attribute to
:class:`~eulxml.xmlmap.eadmap.DigitalArchivalObject`
* Added mapping for `note` field
:class:`~eulxml.xmlmap.eadmap.Index`
* Changed :class:`~eulxml.xmlmap.eadmap.Note` paragraph content from
string list to node list, to support formatting.
* Added mapping for ``processinfo`` to
:class:`~eulxml.xmlmap.eadmap.ArchivalDescription` and
:class:`~eulxml.xmlmap.eadmap.Component`