[pgpool-committers: 7131] pgpool: Doc: add more release note.

[Bo Peng]

Doc: add more 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=c6450d8c812b4edab7a8b0c78421dbf9c7230316

Modified Files
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doc.ja/src/sgml/release-3.6.sgml | 12 ++++++++++++
doc.ja/src/sgml/release-3.7.sgml | 12 ++++++++++++
doc.ja/src/sgml/release-4.0.sgml | 12 ++++++++++++
doc/src/sgml/release-3.6.sgml    |  9 +++++++++
doc/src/sgml/release-3.7.sgml    |  9 +++++++++
doc/src/sgml/release-4.0.sgml    |  9 +++++++++
6 files changed, 63 insertions(+)