add numpy 1.13 legacy print option to test_doc.py
add numpy 1.13 legacy print option to test_doc.py

rgommers/pywt,PyWavelets/pywt,rgommers/pywt,grlee77/pywt,rgommers/pywt,rgommers/pywt,grlee77/pywt,PyWavelets/pywt