LiaisonUser, and EmailAddresses for a mapping to a PersonOrOrgInfo.
It doesn't yet import all groups or permissions; that'll be a
separate (repeatable) process.
The goal is to eventually eliminate completely the WgPassword and
LiaisonUser tables. IESGLogin could go too eventually, but that
requires schema changes, not just changes in the authentication
mechanisms.
- Legacy-Id: 616
in python's xml deserializer (whitespace is significant when
recognizing <None/> nodes, so a general pretty-printer will cause
them to not be recognized.)
This changes empty elements to the more verbose <foo></foo> format,
but that is handled properly by the xml parser.
- Legacy-Id: 382
