bump minimum supported Cython version#452

Merged

grlee77 merged 3 commits intoPyWavelets:masterfrom

grlee77:rtd_cython_fix

Feb 4, 2019

Commits on Feb 4, 2019

remove pin from Cython version used by readthedocs
grlee77
committed
use the minimum supported Cython version in one of the TravisCI runs
grlee77
committed
update the Cython version requirement in the docs [skip ci][ci skip]
grlee77
committed