[pgpool-committers: 8755] pgpool: Doc: add release notes.

[Bo Peng]

Doc: add release notes.

Branch
------
V4_3_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=d2bee183cce76346190325473c8b1999199c5aaf

Modified Files
--------------
doc.ja/src/sgml/release-3.7.sgml | 128 ++++++++++++++++++
doc.ja/src/sgml/release-4.0.sgml | 147 ++++++++++++++++++++
doc.ja/src/sgml/release-4.1.sgml | 237 ++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.2.sgml | 282 ++++++++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.3.sgml | 283 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.7.sgml    | 124 +++++++++++++++++
doc/src/sgml/release-4.0.sgml    | 143 ++++++++++++++++++++
doc/src/sgml/release-4.1.sgml    | 210 +++++++++++++++++++++++++++++
doc/src/sgml/release-4.2.sgml    | 264 ++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.3.sgml    | 262 ++++++++++++++++++++++++++++++++++++
10 files changed, 2080 insertions(+)