Add scrollbar to tabs so larger families can overflow.
Add scrollbar to tabs so larger families can overflow.

michelp/pywt,rgommers/pywt,grlee77/pywt,michelp/pywt,eriol/pywt,grlee77/pywt,rgommers/pywt,rgommers/pywt,eriol/pywt,rgommers/pywt,eriol/pywt,PyWavelets/pywt,michelp/pywt,PyWavelets/pywt