python - me: Namespaces interface Provides a mapping and attribute

Log Message:
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Namespaces interface

Provides a mapping and attribute interface to database namespace selection.
TODO: .keys() to get a list of database namespace.

Added Files:
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me/src:
ns.py (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/me/src/ns.py?rev=1.1&content-type=text/x-cvsweb-markup)