[pgpool-committers: 4114] pgpool: Add 3.6.5 - 3.2.21 release-notes.

[pengbo]

Add 3.6.5 - 3.2.21 release-notes.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=d76db435e98e863b68a8c8c114a951ed3d5f9749

Modified Files
--------------
doc.ja/src/sgml/release-3.2.sgml |  70 +++++++++++
doc.ja/src/sgml/release-3.3.sgml |  70 +++++++++++
doc.ja/src/sgml/release-3.4.sgml | 100 ++++++++++++++-
doc.ja/src/sgml/release-3.5.sgml | 218 +++++++++++++++++++++++++++++++-
doc.ja/src/sgml/release-3.6.sgml | 260 +++++++++++++++++++++++++++++++++++++-
doc/src/sgml/release-3.2.sgml    |  72 +++++++++++
doc/src/sgml/release-3.3.sgml    |  71 +++++++++++
doc/src/sgml/release-3.4.sgml    | 100 +++++++++++++++
doc/src/sgml/release-3.5.sgml    | 226 +++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.6.sgml    | 261 +++++++++++++++++++++++++++++++++++++++
10 files changed, 1443 insertions(+), 5 deletions(-)