[pgpool-committers: 4359] pgpool: Add 3.7RC1 release-notes.

[pengbo]

Add 3.7RC1 release-notes.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=cb0f11a5ed2630460587f9125870ecea7403393b

Modified Files
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doc.ja/src/sgml/release-3.7.sgml | 93 +++++++++++++++++++++++-----------------
doc.ja/src/sgml/version.sgml     |  2 +-
doc/src/sgml/release-3.7.sgml    | 81 ++++++++++++++++++----------------
doc/src/sgml/version.sgml        |  2 +-
4 files changed, 100 insertions(+), 78 deletions(-)