[pgpool-committers: 8410] pgpool: Add release notes.

[Masaya Kawamoto]

Add release notes.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=5a7ffa8c3de1332617981a901f3aada232e57c1b

Modified Files
--------------
doc.ja/src/sgml/release-3.7.sgml | 199 ++++++++++++++++++++++
doc.ja/src/sgml/release-4.0.sgml | 222 +++++++++++++++++++++++++
doc.ja/src/sgml/release-4.1.sgml | 260 +++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.2.sgml | 261 +++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.3.sgml | 335 +++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.7.sgml    | 204 +++++++++++++++++++++++
doc/src/sgml/release-4.0.sgml    | 229 ++++++++++++++++++++++++++
doc/src/sgml/release-4.1.sgml    | 269 ++++++++++++++++++++++++++++++
doc/src/sgml/release-4.2.sgml    | 270 ++++++++++++++++++++++++++++++
doc/src/sgml/release-4.3.sgml    | 346 +++++++++++++++++++++++++++++++++++++++
10 files changed, 2595 insertions(+)