pgsql: Force idle_in_transaction_session_timeout off in pg_dump and aut

Force idle_in_transaction_session_timeout off in pg_dump and autovacuum.

We disable statement_timeout and lock_timeout during dump and restore, to
prevent any global settings that might exist from breaking routine backups.
Commit c6dda1f48 should have added idle_in_transaction_session_timeout to
that list, but failed to.

Another place where these timeouts get turned off is autovacuum. While
I doubt an idle timeout could fire there, it seems better to be safe than
sorry.

pg_dump issue noted by Bernd Helmle, the other one found by grepping.

Report: <352F9B77DB5D3082578D17BB(at)eje(dot)land(dot)credativ(dot)lan>

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/8383486f108c650b187358bfe811060627c751c9

Modified Files
--------------
src/backend/postmaster/autovacuum.c | 12 ++++++++----
src/bin/pg_dump/pg_backup_archiver.c | 7 ++++---
src/bin/pg_dump/pg_dump.c | 2 ++
3 files changed, 14 insertions(+), 7 deletions(-)