[pgpool-committers: 6554] pgpool: Doc: add release-notes.

[Bo Peng]

Doc: add release-notes.

Branch
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V3_7_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=907c770b8bc5c7d93580f19b1f92e684499f5a13

Modified Files
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doc.ja/src/sgml/release-3.5.sgml | 108 +++++++++++++++++++++++
doc.ja/src/sgml/release-3.6.sgml | 122 ++++++++++++++++++++++++++
doc.ja/src/sgml/release-3.7.sgml | 184 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.5.sgml    |  77 ++++++++++++++++
doc/src/sgml/release-3.6.sgml    |  89 +++++++++++++++++++
doc/src/sgml/release-3.7.sgml    | 124 ++++++++++++++++++++++++++
6 files changed, 704 insertions(+)