[pgpool-committers: 7235] pgpool: Doc: add release note.

[Bo Peng]

Doc: add release note.

Branch
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V4_0_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=e8b4fde72ca7b9855ec18a5eedd4b393a15a466d

Modified Files
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doc.ja/src/sgml/release-3.5.sgml | 73 ++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-3.6.sgml | 82 ++++++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-3.7.sgml | 91 ++++++++++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.0.sgml | 91 ++++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.5.sgml    | 60 ++++++++++++++++++++++++++
doc/src/sgml/release-3.6.sgml    | 69 ++++++++++++++++++++++++++++++
doc/src/sgml/release-3.7.sgml    | 78 ++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.0.sgml    | 78 ++++++++++++++++++++++++++++++++++
8 files changed, 622 insertions(+)