[pgpool-committers: 3157] pgpool: Prepare 3.1.18

[pengbo]

Prepare 3.1.18

Branch
------
V3_1_STABLE

Details
-------
http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=a7fa01296819a8ab6d87377d87c00909dfadf3f3

Modified Files
--------------
NEWS               | 186 ++++++++++++++++++++++++++++++++---------------------
configure          |   2 +-
configure.in       |   4 +-
doc/pgpool-ja.html |  49 ++++++++++++++
4 files changed, 164 insertions(+), 77 deletions(-)