Cibuildwheel

_28 May 2019_

- 🐛 Fix missing file in the release tarball, that was causing problems with
Windows builds (141)

_26 May 2019_

- 🌟 Add support for building on Azure pipelines! This lets you build all
Linux, Mac and Windows wheels on one service, so it promises to be the
easiest to set up! Check out the quickstart in the docs, or
[cibuildwheel-azure-example](https://github.com/joerick/cibuildwheel-azure-example)
for an example project. (126, 132)
- 🛠 Internal change - the end-to-end test projects format was updated, so we
can more precisely assert what should be produced for each one. (136, 137).

_10 March 2019_

- 🛠 Revert temporary fix in macOS, that was working around a bug in pip 19 (129)
- 🛠 Update Python to 2.7.16 on macOS
- 🛠 Update OpenSSL patch to 1.0.2r on macOS

_3 February 2019_

- 🐛 Fix build stalling on macOS (that was introduced in pip 19) (122)
- 🐛 Fix "AttributeError: 'Popen' object has no attribute 'args'" on Python 2.7 for Linux builds (108)
- 🛠 Update Python from 3.6.7, 3.7.1 to 3.6.8, 3.7.2 on macOS
- 🛠 Update openssl patch from 1.0.2p to 1.0.2q on macOS
- 🛠 Sorting build options dict items when printing preamble (114)

_23 September 2018_

- 🌟 Add `CIBW_BUILD` option, for specifying which specific builds to perform (101)
- 🌟 Add support for building Mac and Linux on CircleCI (91, 97)
- 🛠 Improved support for building universal wheels (95)
- 🛠 Ensure log output is unbuffered and therefore in the correct order (92)
- 🛠 Improved error reporting for errors that occur inside a package's setup.py (88)
- ⚠️ Removed support for Python 3.3 on Windows.

_29 July 2018_

- 🛠 CIBW_TEST_COMMAND now runs in a shell on Mac (as well as Linux) (81)