To make your fantastic ePaper routines work with Teensy3.1

Hello Brody,
I finally finished this open item: 
I adjusted one of your libraries: EPD_GFX.cpp and its header file EPD_GFX.h.
I had to take out the "assert" commands, not sure if this changes anything for your own application?
If so, can this be done in a different way to avoid "assert"?
If not: Would you please merge them back into your repository?  
Best regards,
Alf