fix conf test to open files for conf.py
fix conf test to open files for conf.py

grybmadsci/openhtf,jettisonjoe/openhtf,google/openhtf,fahhem/openhtf,google/openhtf,jettisonjoe/openhtf,grybmadsci/openhtf,fahhem/openhtf,jettisonjoe/openhtf,ShaperTools/openhtf,ShaperTools/openhtf,amyxchen/openhtf,fahhem/openhtf,amyxchen/openhtf,google/openhtf,grybmadsci/openhtf,fahhem/openhtf,google/openhtf,ShaperTools/openhtf,jettisonjoe/openhtf,ShaperTools/openhtf,ShaperTools/openhtf,grybmadsci/openhtf