Minor other cleanups.

russian_stem, etc.  Per discussion.

- ispell initialization crashed on empty dictionary file
- ispell initialization crashed on affix file with prefixes but no suffixes
- stop words file was run through pg_verify_mbstr, with database
  encoding, but it's supposed to be UTF-8; similar bug for synonym files
- bunch of comments added, typos fixed, and other cleanup

Introduced consistent encoding checking/conversion of data read from tsearch
configuration files, by doing this in a single t_readline() subroutine
(replacing direct usages of fgets).  Cleaned up API for readstopwords too.

Heikki Linnakangas

padded encryption scheme.  Formerly it would try to access res[(unsigned) -1],
which resulted in core dumps on 64-bit machines, and was certainly trouble
waiting to happen on 32-bit machines (though in at least the known case
it was harmless because that byte would be overwritten after return).
Per report from Ken Colson; fix by Marko Kreen.

the same amount of memory in ErrorContext as standard logs.

Transactional Information Systems by Gerhard Weikum, Kaufmann

initdb.  We should create all the standard dictionaries even though
some of them may not work in template1's encoding.  Per Teodor.

This prevents needing to do complex and poorly-defined updates of the
mapping table if the new parser has different token types than the old.
Per discussion.

syncing the existing docs with the final syntax decisions.

names in the former case seems more consistent with the behavior of
other \dF commands.

init options of the template as top-level options in the syntax.  This also
makes ALTER a bit easier to use, since options can be replaced individually.
I also made these statements verify that the tmplinit method will accept
the new settings before they get stored; in the original coding you didn't
find out about mistakes until the dictionary got invoked.

Under the hood, init methods now get options as a List of DefElem instead
of a raw text string --- that lets tsearch use existing options-pushing code
instead of duplicating functionality.

'with map' parameter; as things now stand there's really not much point
in specifying a config-to-copy if you don't copy its map.  Also, use
COPY instead of TEMPLATE as the key word for a config-to-copy, so as
to avoid confusion with text search templates.  Per discussion; the
just-committed reference page for the command already describes it
this way.

pages for the new SQL commands.  I also committed Bruce's text search
introductory chapter, as-is except for fixing some markup errors,
so that there would be a place for the reference pages to link to.

There's not much point in prettifying machine-generated code, and it
seems best to keep these files exactly like upstream anyway.  Also add
some notes about why various files are excluded.

Windows builds.  In passing, fix an obsolete comment, per gripe from
Greg Stark.

(Still needs to build the .sql output files, but this handles the C part
of the build)

on mingw and probably cygwin.

objects to it.

of int64 for int32.  Per reports from Merlin Moncure and Andrew Chernow.

of the datatype to int64.  Per Andrew Chernow.

byte after the last full byte of the bit array, regardless of whether that
byte was part of the valid data or not.  Found by buildfarm testing.
Thanks to Stefan Kaltenbrunner for nailing down the cause.

the core additions.  For the moment I diked it out of contrib/Makefile.
We should look at turning it into a backward-compatibility package.

Oleg Bartunov and Teodor Sigaev, but I did a lot of editorializing,
so anything that's broken is probably my fault.

Documentation is nonexistent as yet, but let's land the patch so we can
get some portability testing done.

database.

< * Allow server log information to be output as INSERT statements
> * -Allow server log information to be output as CSV format

redirect_stderr to logging_collector.
Original patch from Arul Shaji, subsequently modified by Greg Smith, and then
heavily modified by me.

>
> * Reduce XID consumption of read-only queries
>
>    http://archives.postgresql.org/pgsql-hackers/2007-08/msg00516.php
>