[pgpool-committers: 10356] pgpool: Doc: add release notes.

[Bo Peng]

Doc: add release notes.

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=ca6998b643ef3c4c6729867ccdc4effb3bd422cb

Modified Files
--------------
doc.ja/src/sgml/release-4.2.sgml | 135 +++++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.3.sgml | 135 +++++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.4.sgml | 135 +++++++++++++++++++++++++++++++++++
doc.ja/src/sgml/release-4.5.sgml | 135 +++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.2.sgml    | 147 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.3.sgml    | 147 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.4.sgml    | 147 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.5.sgml    | 147 +++++++++++++++++++++++++++++++++++++++
8 files changed, 1128 insertions(+)