Integrate src/timezone library for all platforms.

Log Message:
-----------
Integrate src/timezone library for all platforms. There is more we can
and should do now that we control our own destiny for timezone handling,
but this commit gets the bulk of the picayune diffs in place.
Magnus Hagander and Tom Lane.

Modified Files:
--------------
pgsql-server:
configure (r1.366 -> r1.367)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/configure.diff?r1=1.366&r2=1.367)
configure.in (r1.355 -> r1.356)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/configure.in.diff?r1=1.355&r2=1.356)
pgsql-server/doc/src/sgml:
regress.sgml (r1.39 -> r1.40)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/regress.sgml.diff?r1=1.39&r2=1.40)
pgsql-server/src:
Makefile.global.in (r1.184 -> r1.185)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/Makefile.global.in.diff?r1=1.184&r2=1.185)
pgsql-server/src/backend:
Makefile (r1.99 -> r1.100)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/Makefile.diff?r1=1.99&r2=1.100)
pgsql-server/src/backend/access/transam:
xact.c (r1.165 -> r1.166)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/access/transam/xact.c.diff?r1=1.165&r2=1.166)
xlog.c (r1.140 -> r1.141)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/access/transam/xlog.c.diff?r1=1.140&r2=1.141)
pgsql-server/src/backend/bootstrap:
bootparse.y (r1.66 -> r1.67)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/bootstrap/bootparse.y.diff?r1=1.66&r2=1.67)
bootscanner.l (r1.33 -> r1.34)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/bootstrap/bootscanner.l.diff?r1=1.33&r2=1.34)
bootstrap.c (r1.178 -> r1.179)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/bootstrap/bootstrap.c.diff?r1=1.178&r2=1.179)
pgsql-server/src/backend/commands:
variable.c (r1.94 -> r1.95)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/commands/variable.c.diff?r1=1.94&r2=1.95)
pgsql-server/src/backend/optimizer/geqo:
geqo_main.c (r1.43 -> r1.44)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/optimizer/geqo/geqo_main.c.diff?r1=1.43&r2=1.44)
pgsql-server/src/backend/postmaster:
postmaster.c (r1.392 -> r1.393)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/postmaster/postmaster.c.diff?r1=1.392&r2=1.393)
pgsql-server/src/backend/tcop:
postgres.c (r1.412 -> r1.413)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/tcop/postgres.c.diff?r1=1.412&r2=1.413)
pgsql-server/src/backend/utils/adt:
date.c (r1.96 -> r1.97)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/adt/date.c.diff?r1=1.96&r2=1.97)
datetime.c (r1.127 -> r1.128)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/adt/datetime.c.diff?r1=1.127&r2=1.128)
formatting.c (r1.74 -> r1.75)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/adt/formatting.c.diff?r1=1.74&r2=1.75)
misc.c (r1.32 -> r1.33)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/adt/misc.c.diff?r1=1.32&r2=1.33)
nabstime.c (r1.120 -> r1.121)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/adt/nabstime.c.diff?r1=1.120&r2=1.121)
timestamp.c (r1.105 -> r1.106)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/adt/timestamp.c.diff?r1=1.105&r2=1.106)
pgsql-server/src/backend/utils/error:
elog.c (r1.136 -> r1.137)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/error/elog.c.diff?r1=1.136&r2=1.137)
pgsql-server/src/backend/utils/misc:
guc.c (r1.205 -> r1.206)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/misc/guc.c.diff?r1=1.205&r2=1.206)
pgsql-server/src/include:
c.h (r1.164 -> r1.165)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/c.h.diff?r1=1.164&r2=1.165)
pg_config.h.in (r1.74 -> r1.75)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/pg_config.h.in.diff?r1=1.74&r2=1.75)
pg_config_manual.h (r1.12 -> r1.13)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/pg_config_manual.h.diff?r1=1.12&r2=1.13)
port.h (r1.35 -> r1.36)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/port.h.diff?r1=1.35&r2=1.36)
pgsql-server/src/include/catalog:
pg_control.h (r1.13 -> r1.14)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/catalog/pg_control.h.diff?r1=1.13&r2=1.14)
pgsql-server/src/include/commands:
vacuum.h (r1.51 -> r1.52)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/commands/vacuum.h.diff?r1=1.51&r2=1.52)
pgsql-server/src/include/libpq:
libpq-be.h (r1.44 -> r1.45)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/libpq/libpq-be.h.diff?r1=1.44&r2=1.45)
pgsql-server/src/include/utils:
datetime.h (r1.47 -> r1.48)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/utils/datetime.h.diff?r1=1.47&r2=1.48)
nabstime.h (r1.41 -> r1.42)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/utils/nabstime.h.diff?r1=1.41&r2=1.42)
timestamp.h (r1.36 -> r1.37)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/utils/timestamp.h.diff?r1=1.36&r2=1.37)
pgsql-server/src/port:
gettimeofday.c (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/port/gettimeofday.c.diff?r1=1.3&r2=1.4)
pgsql-server/src/test/regress:
resultmap (r1.73 -> r1.74)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/resultmap.diff?r1=1.73&r2=1.74)
pgsql-server/src/timezone:
Makefile (r1.9 -> r1.10)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/Makefile.diff?r1=1.9&r2=1.10)
README (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/README.diff?r1=1.2&r2=1.3)
ialloc.c (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/ialloc.c.diff?r1=1.2&r2=1.3)
localtime.c (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/localtime.c.diff?r1=1.3&r2=1.4)
pgtz.c (r1.9 -> r1.10)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/pgtz.c.diff?r1=1.9&r2=1.10)
pgtz.h (r1.6 -> r1.7)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/pgtz.h.diff?r1=1.6&r2=1.7)
private.h (r1.5 -> r1.6)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/private.h.diff?r1=1.5&r2=1.6)
scheck.c (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/scheck.c.diff?r1=1.2&r2=1.3)
tzfile.h (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/tzfile.h.diff?r1=1.2&r2=1.3)
zic.c (r1.4 -> r1.5)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/zic.c.diff?r1=1.4&r2=1.5)

Added Files:
-----------
pgsql-server/src/include:
pgtime.h (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/pgtime.h?rev=1.1&content-type=text/x-cvsweb-markup)
pgsql-server/src/timezone:
strftime.c (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/strftime.c?rev=1.1&content-type=text/x-cvsweb-markup)

Removed Files:
-------------
pgsql-server/src/test/regress/expected:
abstime-solaris-1947.out
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/expected/abstime-solaris-1947.out)
horology-no-DST-before-1970.out
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/expected/horology-no-DST-before-1970.out)
horology-solaris-1947.out
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/expected/horology-solaris-1947.out)
tinterval-solaris-1947.out
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/test/regress/expected/tinterval-solaris-1947.out)
pgsql-server/src/timezone:
asctime.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/asctime.c)
difftime.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/timezone/difftime.c)