[pgpool-committers: 8612] pgpool: Doc: add release notes.

[Bo Peng]

Doc: add release notes.

Branch
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V4_1_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=ab74efd1e1b6c01d30853941c363f0e8c076f493

Modified Files
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doc.ja/src/sgml/release-3.7.sgml | 142 ++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.0.sgml | 179 +++++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.1.sgml | 198 ++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.7.sgml    | 143 ++++++++++++++++++++++++++++
doc/src/sgml/release-4.0.sgml    | 180 +++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.1.sgml    | 199 +++++++++++++++++++++++++++++++++++++++
6 files changed, 1041 insertions(+)