Cibuildwheel

_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)

_10 July 2018_

- 🛠 Update to Python 3.6.6 on macOS (82)
- ✨ Add support for building Python 3.7 wheels on Windows (76)
- ⚠️ Deprecated support for Python 3.3 on Windows.

_1 July 2018_

- 🛠 Update Python 3.7.0rc1 to 3.7.0 on macOS (79)