Wal-e

noteworthy detailed behavioral change:

WAL-E now ignores backing up the directories ``pg_log``,
``pg_replslot``, and ``pg_wal``, all of which could cause spurious
problems in backup or restore.

Other changes include:

* It also switches to a more modern driver for Google Storage. (Samuel
Kohonen)

* Python 3.6 is now a tested (Dr. Nic Williams)

* A counter-productive infinite retry with expired STS tokens has been
fixed (Timothée Peignier)

* The README has been expanded (tvarsis, Daniel Farina)

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Release v1.0.3 adds support for Keystone v3 (Joel E. Svensson).

feature, and documentation.

Thanks goes to: Ayush Goyal, for fixing an infinite-retry in WABS
deletion. Jamal Boukaffal for a crash fix to offline backups. Norbert
Tretkowski for documentation fixes.

encoding errors that resulted from Python 3 conversion.

Thanks goes to: Ayush Goyal, for the fix for WABS. Joe Healy, for the
fix for Swift. Derrick Petzold fixed an old reference to Python 2 in
the README.

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Release v1.0.0 contains the conversion WAL-E from a Python 2.7 to a
Python 3.4 and Python 3.5 project. It also adds support for Google
Cloud Storage (Matt Wright, Daniel Farina, Samuel Kohonen).

In addition, all WAL-E storage backends have been made optional. Thus,
running ``pip install wal-e`` does not install any backends by
default. One must instead write a command akin to ``pip install
wal-e[aws]``. The valid options are:

* aws
* azure
* google
* swift

Finally, there are some detailed adjustments:

* Default parallelism for ``wal-push`` has been increased to 32.

* 404 messages have been demoted to "INFO" rather than "WARNING"
because they can happen routinely and continuously, particularly
with ``standby_mode=on`` (earsdown).

* Top-level backups in Azure no longer create a nameless "directory"
(Andrew Marks).

* WAL-E start-up log message has been suppressed in some noisy cases:
``wal-fetch``, ``wal-push``, ``wal-prefetch``.

* WABS's `Content-Type` header is being set correctly. Previously
this header was confused with `Content-Encoding` (David Dever).

updated statement_timeout suppression patch that can break use of
wrapper scripts ``psql``. By Kenneth Shelton.