[pgpool-committers: 3981] pgpool: Add 3.6.3 - 3.2.20 release note.

[pengbo]

Add 3.6.3 - 3.2.20 release note.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=37a92e3c6f3bede5a498d6cbb0c5d10d8e6f0b7f

Modified Files
--------------
doc.ja/src/sgml/release-3.2.sgml |  26 ++++
doc.ja/src/sgml/release-3.3.sgml |  45 ++++++
doc.ja/src/sgml/release-3.4.sgml |  55 +++++++
doc.ja/src/sgml/release-3.5.sgml | 188 +++++++++++++++++++++++
doc.ja/src/sgml/release-3.6.sgml | 264 +++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.2.sgml    |  28 ++++
doc/src/sgml/release-3.3.sgml    |  47 ++++++
doc/src/sgml/release-3.4.sgml    |  57 +++++++
doc/src/sgml/release-3.5.sgml    | 231 +++++++++++++++++++++++++++++
doc/src/sgml/release-3.6.sgml    | 312 +++++++++++++++++++++++++++++++++++++++
10 files changed, 1253 insertions(+)