Log Message:
What's new in psycopg 2.7.2
- Fixed inconsistent state in externally closed connections
  Was fixed in 2.6.2 but not included in 2.7 by mistake.
- Fixed Python exceptions propagation in green callback
- Don't display the password in `connection.dsn` when the connection
  string is specified as an URI
- Return objects with timezone parsing "infinity" :sql:`timestamptz`
- Dropped dependency on VC9 runtime on Windows binary packages
- Fixed segfault in `~connection.lobject()` when *mode*\=\ `!None`
- Fixed `~connection.lobject()` keyword argument *lobject_factory*
- Fixed `~psycopg2.extras.ReplicationCursor.consume_stream()`
  *keepalive_interval* argument
- Maybe fixed random import error on Python 3.6 in multiprocess
  environment
- Fixed random `!SystemError` upon receiving abort signal
- Accept `~psycopg2.sql.Composable` objects in
  `~psycopg2.extras.ReplicationCursor.start_replication_expert()`
- Parse intervals returned as microseconds from Redshift
- Added `~psycopg2.extras.Json` `!prepare()` method to consider connection
  params when adapting
- `~psycopg2.errorcodes` map updated to PostgreSQL 10 beta 1.