[pgpool-committers: 10450] pgpool: Doc: add release notes.

[Taiki Koshino]

Doc: add release notes.

Branch
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V4_6_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=dacde9504e303071900c8e42acffab5f0d0c6b55

Modified Files
--------------
doc.ja/src/sgml/release-4.2.sgml | 140 +++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.3.sgml | 140 +++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.4.sgml | 140 +++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.5.sgml | 155 ++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.6.sgml | 192 ++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.2.sgml    | 153 +++++++++++++++++++++++++++++
doc/src/sgml/release-4.3.sgml    | 153 +++++++++++++++++++++++++++++
doc/src/sgml/release-4.4.sgml    | 153 +++++++++++++++++++++++++++++
doc/src/sgml/release-4.5.sgml    | 168 ++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.6.sgml    | 203 +++++++++++++++++++++++++++++++++++++++
10 files changed, 1597 insertions(+)