[pgpool-committers: 3697] pgpool: Add 3.5.5 release note.

[Tatsuo Ishii]

Add 3.5.5 release note.

Branch
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V3_6_STABLE

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=3b2e955393a253c6228422b0a037621da79a72d3

Modified Files
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doc/src/sgml/filelist.sgml    |   1 +
doc/src/sgml/release-3.5.sgml | 376 ++++++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release.sgml     |   3 +-
3 files changed, 379 insertions(+), 1 deletion(-)