9.0 release notes done

I have completed the 9.0 release notes:
http://developer.postgresql.org/pgdocs/postgres/release-9-0.html

I kept the 9.0-alpha release notes in the SGML because people might want
to compare them with the release notes I did, and because the
introductory text will be needed for the next alpha.  Eventually we will
want to trim the alpha SGML and perhaps place it in a large comment
block for use for 9.1 alphas.

Interestingly the 9.0 release notes contain 201 items, while the 8.4
release notes contained 314 items.  Of course we will be adding a few
more 9.0 items before 9.0 final, but not a lot.  The only explanation I
can think of is that we were more focused during this release, and there
were fewer minor cleanups.  The migration issues section, for example,
was significantly smaller than in 8.4.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 PG East:  http://www.enterprisedb.com/community/nav-pg-east-2010.do