pgpool: Feature: Make online recovery database configurable

Feature: Make online recovery database configurable

Prior to version 4.6, the online recovery database was hardcoded to "template1".
This commit introduces a new configuration parameter, "recovery_database",
which allows users to specify the database used for online recovery.
The default value is "postgres".

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=3cc3d2d848a9e0c0646961ab4fa7904fafac2d5f

Modified Files
--------------
doc.ja/src/sgml/example-cluster.sgml | 10 ++---
doc.ja/src/sgml/example-replication-si-mode.sgml | 9 ++--
doc.ja/src/sgml/installation.sgml | 21 ++++++----
doc.ja/src/sgml/online-recovery.sgml | 52 ++++++++++++++++++++++++
doc/src/sgml/example-cluster.sgml | 20 +++++----
doc/src/sgml/example-replication-si-mode.sgml | 18 ++++----
doc/src/sgml/installation.sgml | 15 ++++---
doc/src/sgml/online-recovery.sgml | 35 ++++++++++++++++
src/config/pool_config_variables.c | 10 +++++
src/include/pool_config.h | 7 ++--
src/pcp_con/recovery.c | 11 ++++-
src/sample/pgpool.conf.sample-stream | 3 ++
src/test/pgpool_setup.in | 1 +
src/test/watchdog_setup.in | 1 +
src/utils/pool_process_reporting.c | 5 +++
15 files changed, 176 insertions(+), 42 deletions(-)