While this makes things a little more complicated and means we'll need to use
`-r` to recreate tox environments, it has several advantages:
- Full support from requires.io (including PRs)
- Workaround for https://bitbucket.org/hpk42/tox/issues/332/ so we can update
virtualenv/pip
Having a Python script was a good idea back when we could do almost the
same steps on every CI configuration.
This turned out to grow into a complicated script, so it's easier to
split off things for Linux/OS X into a small shell script (and keep
Python for Windows, as I really don't want to use .bat/.ps).
While pytest-sugar was nice to look at, it produced a lot of issues:
- Unusable on CI
- Unusable on OS X and Windows
- Garbage when terminal was resized during tests
- Missing space after test name since some while
This replaces it by pytest-instafail, which replaces the most important feature
of sugar, and on top of that, also works on CI.
- The environment to run unittests is now called py34 as that's the common
thing used, and will also allow us to run the tests with Python 3.5.
- The default tests now also run coverage.py and do a coverage check (on
Linux).
- The smoke tests are now part of the default environment.
