Open items updated

I have updated the open items based on recent discussions:

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                              PostgreSQL 8.1 Open Items                              =========================

Current version at http://candle.pha.pa.us/cgi-bin/pgopenitems.

Changes
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integrated auto-vacuum (Alvaro)
ICU locale patch?
Win32 signal handling patch (Magnus)
KRB4 removal patch (Magnus)
GIST concurrency support (Teodor, Oleg)
Roles? (Stephen Frost)
column-level triggers (Greg)
interval improvements (Michael Glaesemann)
move rtree_gist into core?
config file I/O? (Adreas)
terminate backend fix?
dbsize functions from /contrib? (Andreas)
fix pg_autovacuum O(n^2) behavior
remove wal siblings guc vars?
COPY performance improvements (greenplum)
shared dependency (Alvaro)
concurrent vacuum (Hannu)
make pg_dump E''escape safe
table partitionaing (Simon)
WAL improvements (Simon)

Documentation
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Fixed Since Last Beta
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--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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