Humanfriendly

---------------------------

Improved usage message parsing and rendering.

While working on a new project I noticed that the ``join_lines()`` call in
``render_usage()`` could corrupt lists as observed here:

https://github.com/xolox/python-rsync-system-backup/blob/ed73787745e706cb6ab76c73acb2480e24d87d7b/README.rst#command-line (check the part after 'Supported locations include:')

To be honest I'm not even sure why I added that ``join_lines()`` call to begin
with and I can't think of any good reasons to keep it there, so gone it is!

.. _Release 3.1: https://github.com/xolox/python-humanfriendly/compare/3.0...3.1

---------------------------

- Added support for min, mins abbreviations for minutes based on `14`_.
- Added Python 3.6 to supported versions on Travis CI and in documentation.

I've decided to bump the major version number after merging pull request `14`_
because the ``humanfriendly.time_units`` data structure was changed. Even
though this module scope variable isn't included in the online documentation,
nothing stops users from importing it anyway, so this change is technically
backwards incompatible. Besides, version numbers are cheap. In fact, they are
infinite! :-)

.. _Release 3.0: https://github.com/xolox/python-humanfriendly/compare/2.4...3.0
.. _14: https://github.com/xolox/python-humanfriendly/pull/14

---------------------------

Make ``usage()`` and ``show_pager()`` more user friendly by changing how
:man:`less` as a default pager is invoked (with specific options).

.. _Release 2.4: https://github.com/xolox/python-humanfriendly/compare/2.3.2...2.4

-----------------------------

Bug fix: Don't hard code conditional dependencies in wheels.

.. _Release 2.3.2: https://github.com/xolox/python-humanfriendly/compare/2.3.1...2.3.2

-----------------------------

Fix ``parse_usage()`` tripping up on commas in option labels.

.. _Release 2.3.1: https://github.com/xolox/python-humanfriendly/compare/2.3...2.3.1

---------------------------

- Switch to monotonic clock for timers based on `13`_.
- Change ``readthedocs.org`` to ``readthedocs.io`` everywhere.
- Improve intersphinx references in documentation.
- Minor improvements to setup script.

.. _Release 2.3: https://github.com/xolox/python-humanfriendly/compare/2.2.1...2.3
.. _13: https://github.com/xolox/python-humanfriendly/issues/13