Missing license file on linux wheels
#### Problem description

The manylinux1 wheels for cp36 pandas 0.24.1 don't have License files. See https://files.pythonhosted.org/packages/e6/de/a0d3defd8f338eaf53ef716e40ef6d6c277c35d50e09b586e170169cdf0d/pandas-0.24.1-cp36-cp36m-manylinux1_x86_64.whl for example.