Sorting out doctest runner settings for testing on Travis CI.
Sorting out doctest runner settings for testing on Travis CI.

PyWavelets/pywt,michelp/pywt,Dapid/pywt,nigma/pywt,michelp/pywt,aaren/pywt,Dapid/pywt,eriol/pywt,kwohlfahrt/pywt,rgommers/pywt,michelp/pywt,eriol/pywt,grlee77/pywt,rgommers/pywt,ThomasA/pywt,PyWavelets/pywt,aaren/pywt,Dapid/pywt,eriol/pywt,kwohlfahrt/pywt,aaren/pywt,nigma/pywt,grlee77/pywt,nigma/pywt,rgommers/pywt,ThomasA/pywt,rgommers/pywt,kwohlfahrt/pywt,ThomasA/pywt