Fix two of the unresolved issues from the previous reconciliation
between dat/history and doc/Guidebook.*: synchronize the list of
devteam members for 3.0 and also the information about Izchak's
death.
Add a description of the Y2K situation. It's been moved to its
own paragraph and rephrased from the earlier draft(s), both the
introduction and a switch from present to past tense. Parentheses
around a whole paragraph look a bit odd but including the paragraph
without them also looks unusual because the context is so different
from adjacent paragraphs. Maybe use "Note: Blah blah..." instead
of "(Blah blah...)"?
Redo the paragraph about 3.0 version numbering since the situation
was more complex than I realized.
bcd6665ccf