[pgpool-committers: 6355] pgpool: Doc: Add release-note.

[Bo Peng]

Doc: Add release-note.

Branch
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V3_7_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=3b4ba2eb15da7c249443eb1560c3e287aabf77d4

Modified Files
--------------
doc.ja/src/sgml/release-3.4.sgml |  87 ++++++++++++++++
doc.ja/src/sgml/release-3.5.sgml |  99 ++++++++++++++++++
doc.ja/src/sgml/release-3.6.sgml | 149 +++++++++++++++++++++++++++
doc.ja/src/sgml/release-3.7.sgml | 216 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-3.4.sgml    |  60 +++++++++++
doc/src/sgml/release-3.5.sgml    |  69 +++++++++++++
doc/src/sgml/release-3.6.sgml    | 109 ++++++++++++++++++++
doc/src/sgml/release-3.7.sgml    | 156 ++++++++++++++++++++++++++++
8 files changed, 945 insertions(+)