Tag appropriate files for rc3

Also performed an initial run through of upgrading our Copyright date to
extend to 2005 ... first run here was very simple ... change everything
where: grep 1996-2004 && the word 'Copyright' ... scanned through the
generated list with 'less' first, and after, to make sure that I only
picked up the right entries ...

to shared memory as soon as possible, ie, right after read_backend_variables.
The effective difference from the original code is that this happens
before instead of after read_nondefault_variables(), which loads GUC
information and is apparently capable of expanding the backend's memory
allocation more than you'd think it should.  This should fix the
failure-to-attach-to-shared-memory reports we've been seeing on Windows.
Also clean up a few bits of unnecessarily grotty EXEC_BACKEND code.

that is, files are sought in the same directory as the referencing file.
Also allow absolute paths in @file constructs.  Improve documentation
to actually say what is allowed in an included file.

index predicate uses temporary memory for evaluation.  Per example
from Jean-Gerard Pailloncy.

the remainder of the current clog page during system startup.  While
this was a good idea, it turns out the code fails if nextXid is
exactly at a page boundary, because we won't have created the "current"
clog page yet in that case.  Since the page will be correctly zeroed
when we execute the first transaction on it, the solution is just to
do nothing when exactly at a page boundary.  Per trouble report from
Dave Hartwig.

paths of pgstat_init.  Responds to confusion exhibited by Christoph Haller.

when it changes.  Per request from Kris Jurka.

its presence.  This amounts to desupporting Kerberos 5 releases 1.0.*,
which is small loss, and simplifies use of our Kerberos code on platforms
with Red-Hat-style include file layouts.  Per gripe from John Gray and
followup discussion.

R?mi Zara

Per example from Florian Pflug.

usefully be larger than 255.  Per gripe from Simon Riggs.

from goranpop@nspoint.net.  I think this escaped notice because in
simple cases the list is NIL on entry.

silently ignored, allowing one to write bizarre things like
	DECLARE x setof int;
in plpgsql.  This has misled at least one novice into thinking that
plpgsql variables could be sets ...

redundant cross-datatype comparisons.  Per example from Merlin Moncure.

in prettyprint mode.  Andreas Pflug

had to do in DECLARE CURSOR.  AFAICS these are all the places affected.
PREPARE case per example from Michael Fuhr, EXPLAIN case located by
grepping for planner calls ...

(rd_att) field of a nailed-in-cache relcache entry.  This fixes the bug
reported by Alvaro 8-Dec-2004; I believe it probably also explains
Grant Finnemore's report of 10-Sep-2004.

In an unrelated change in the same file, put back 7.4's response to
failure to rename() the relcache init file, ie, unlink the useless
temp file.  I did not put back the warning message, since there might
actually be some reason not to have that.

of an inheritance child table is binary-compatible with the rowtype of
its parent, invent an expression node type that does the conversion
correctly.  Fixes the new bug exhibited by Kris Shannon as well as a
lot of old bugs that would only show up when using multiple inheritance
or after altering the parent table.

triggers during COMMIT.  Per trouble report from Frank van Vugt.

is null-terminated.  I think this is not a real bug because the parser
would always have truncated the identifier to NAMEDATALEN-1 already,
but let's be safe.  Per report from Klocwork.

> each COPY, and then where we test for CR or LF in CopyAttributeOutCSV,
> if the flag is not set then set it and issue the warning.

Andrew Dunstan