pgsql: Stamp release 8.1.6.

Log Message:
-----------
Stamp release 8.1.6.

Tags:
----
REL8_1_STABLE

Modified Files:
--------------
pgsql/doc:
FAQ (r1.362.2.12 -> r1.362.2.13)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/FAQ.diff?r1=1.362.2.12&r2=1.362.2.13)
bug.template (r1.34.2.6 -> r1.34.2.7)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/bug.template.diff?r1=1.34.2.6&r2=1.34.2.7)
pgsql/doc/src/FAQ:
FAQ.html (r1.318.2.12 -> r1.318.2.13)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ.html.diff?r1=1.318.2.12&r2=1.318.2.13)
pgsql/src/include:
pg_config.h.win32 (r1.22.2.8 -> r1.22.2.9)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/pg_config.h.win32.diff?r1=1.22.2.8&r2=1.22.2.9)
pgsql/src/interfaces/libpq:
libpq.rc.in (r1.3.2.5 -> r1.3.2.6)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/libpq.rc.in.diff?r1=1.3.2.5&r2=1.3.2.6)
pgsql/src/port:
win32ver.rc (r1.6.2.5 -> r1.6.2.6)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/win32ver.rc.diff?r1=1.6.2.5&r2=1.6.2.6)