Update pgcli to 1.6.0

[pyup-bot]

There's a new version of pgcli available.
You are currently using 1.5.1. I have updated it to 1.6.0

These links might come in handy: PyPI | Changelog | Homepage

Changelog

1.6.0

=====

Features:

• Add time option for prompt (Thanks: Gustavo Castro_)
• Suggest objects from all schemas (not just those in search_path) (Thanks: Joakim Koljonen_)
• Casing for column headers (Thanks: Joakim Koljonen_)
• Allow configurable character to be used for multi-line query continuations. (Thanks: Owen Stephens_)
• Completions after ORDER BY and DISTINCT now take account of table aliases. (Thanks: Owen Stephens_)
• Narrow keyword candidates based on previous keyword. (Thanks: Étienne Bersac_)
• Opening an external editor will edit the last-run query. (Thanks: Thomas Roten_)
• Support query options in postgres URIs such as ?sslcert=foo.pem (Thanks: Alexander Schmolck_)

Bug fixes:

• Fixed external editor bug (issue 668). (Thanks: Irina Truong_).
• Standardize command line option names. (Thanks: Russell Davies_)
• Improve handling of lock_not_available error (issue 700). (Thanks: Jackson Popkin <https://github.com/jdpopkin>_)
• Fixed user option precedence (issue 697). (Thanks: Irina Truong_).

Internal changes:

• Run pep8 checks in travis (Thanks: Irina Truong_).
• Add pager wrapper for behave tests (Thanks: Dick Marinus_).
• Behave quit pgcli nicely (Thanks: Dick Marinus_).
• Behave test source command (Thanks: Dick Marinus_).
• Behave fix clean up. (Thanks: Dick Marinus_).
• Test using behave the tee command (Thanks: Dick Marinus_).
• Behave remove boiler plate code (Thanks: Dick Marinus_).
• Behave fix pgspecial update (Thanks: Dick Marinus_).
• Add behave to tox (Thanks: Dick Marinus_).

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

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