v1.7.1

• ufoLib with lxml support is now a hard requirement of fontmake. Lxml provides precompiled wheels for all python versions and platforms that fontmake supports so this is ok.
• Added self-contained python zipapps for all the platforms/python versions that are currently supported by fontmake. Just download the fontmake*.pyz file that matches your python, platform and architecture and run it like a normal executable. No need to create virtual environments or install any dependencies. They are all embedded in the .pyz file (which is actually a zip file with some magic bootstrapping python code and the whole site-packages embedded). Please report any issues that you find.