pgsql: Add option to include WAL in base backup

Add option to include WAL in base backup

When included, this makes the base backup a complete working
"clone" of the initial database, ready to have a postmaster
started against it without the need to set up any log archiving
or similar.

Magnus Hagander, reviewed by Fujii Masao and Heikki Linnakangas

Branch
------
master

Details
-------
http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=507069de6dbe18c2163f27fbc780673eef8c5622

Modified Files
--------------
doc/src/sgml/protocol.sgml | 19 ++++-
doc/src/sgml/ref/pg_basebackup.sgml | 32 +++++++-
src/backend/replication/basebackup.c | 149 +++++++++++++++++++++++++-------
src/backend/replication/repl_gram.y | 10 ++-
src/backend/replication/repl_scanner.l | 1 +
src/backend/replication/walsender.c | 8 ++-
src/bin/pg_basebackup/pg_basebackup.c | 21 ++++-
src/include/replication/walsender.h | 1 +
8 files changed, 197 insertions(+), 44 deletions(-)