Pull in reload from latest pyqtgraph
Pull in reload from latest pyqtgraph

This is a correction for mistakes made in a previous merge.
acq4/acq4,meganbkratz/acq4,meganbkratz/acq4,pbmanis/acq4,pbmanis/acq4,acq4/acq4,meganbkratz/acq4,campagnola/acq4,acq4/acq4,campagnola/acq4,meganbkratz/acq4,pbmanis/acq4,campagnola/acq4,campagnola/acq4,acq4/acq4,pbmanis/acq4