[pgpool-committers: 3993] pgpool: Add release notes.

[pengbo]

Add release notes.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=cbae0ff573753ccdba52959132b7a8197b464068

Modified Files
--------------
doc.ja/src/sgml/release-3.2.sgml |  169 +-
doc.ja/src/sgml/release-3.3.sgml |  343 +--
doc.ja/src/sgml/release-3.4.sgml |  385 ++--
doc.ja/src/sgml/release-3.5.sgml | 1170 +++++------
doc.ja/src/sgml/release-3.6.sgml | 4275 +++++++++++++++++++-------------------
doc/src/sgml/release-3.2.sgml    |  127 +-
doc/src/sgml/release-3.3.sgml    |  257 +--
doc/src/sgml/release-3.4.sgml    |  295 +--
doc/src/sgml/release-3.5.sgml    |  961 ++++-----
doc/src/sgml/release-3.6.sgml    | 3250 ++++++++++++++---------------
10 files changed, 5626 insertions(+), 5606 deletions(-)