build error according to the readme badge about aggdraw

[djhoese]

Thanks for bringing this up @matkoniecz. I'm aware of the failures, but was unable to fix them. Last time I checked I was able to get them to pass by adding a blank line to the test configuration (something that shouldn't matter). I'll look in to it again.

[matkoniecz]

After #52 it seems to be failing on evironment setup in https://travis-ci.org/pytroll/aggdraw/jobs/484934100

Uninstalling setuptools-18.2:

No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself.

The last command, pip install --upgrade setuptools is running without sudo unlike some earlier ones. And just yesterday my pip on my PC was freezing when it was missing both sudo and user install mode.

Maybe adding missing sudo will help?

[djhoese]

@matkoniecz Looks like you are right and cibuildwheels is aware of it: pypa/cibuildwheel#122

This isn't something we can control though since it is happening in the cibuildwheels tool so we'll have to wait for someone to come up with and merge a fix on their side.