[pgpool-committers: 5468] pgpool: Add release-notes 4.0.3-3.4.22.

[Bo Peng]

Add release-notes 4.0.3-3.4.22.

Branch
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V4_0_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=e0776adbba007a121faed58496fdbc95cc0a6b3e

Modified Files
--------------
doc.ja/src/sgml/release-3.4.sgml |  86 +++++++++++++++
doc.ja/src/sgml/release-3.5.sgml | 113 +++++++++++++++++++
doc.ja/src/sgml/release-3.6.sgml | 160 +++++++++++++++++++++++++++
doc.ja/src/sgml/release-3.7.sgml | 186 ++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.0.sgml | 228 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.4.sgml    |  63 +++++++++++
doc/src/sgml/release-3.5.sgml    |  84 +++++++++++++++
doc/src/sgml/release-3.6.sgml    | 116 ++++++++++++++++++++
doc/src/sgml/release-3.7.sgml    | 134 +++++++++++++++++++++++
doc/src/sgml/release-4.0.sgml    | 162 ++++++++++++++++++++++++++++
10 files changed, 1332 insertions(+)