ImageView updates to improve subclassing flexibility:  - Allow non-ndarray image data  - Make quickMinMax a normal method
ImageView updates to improve subclassing flexibility:
 - Allow non-ndarray image data
 - Make quickMinMax a normal method

derricw/pyqtgraph,campagnola/acq4,gvalentine/pyqtgraph,meganbkratz/acq4,acq4/acq4,jlombacher/pyqtgraph,ng110/pyqtgraph,carlomt/dicom_tools,mgraupe/acq4,pbmanis/acq4,stscieisenhamer/pyqtgraph,ericdill/pyqtgraph,meganbkratz/acq4,ericdill/pyqtgraph,benvermaercke/pyqtgraph,pbmanis/acq4,petebachant/pyqtgraph,acq4/acq4,welshjf/pyqtgraph,ericdill/pyqtgraph,pmaunz/pyqtgraph,ddamiani/pyqtgraph,mgraupe/acq4,duguxy/pyqtgraph,onlyjus/pyqtgraph,pbmanis/acq4,ddamiani/pyqtgraph,duguxy/pyqtgraph,stscieisenhamer/pyqtgraph,acq4/acq4,ddamiani/pyqtgraph,acq4/acq4,vallsv/pyqtgraph,campagnola/acq4,ng110/pyqtgraph,benvermaercke/pyqtgraph,mgraupe/acq4,vallsv/pyqtgraph,tropp/acq4,nmearl/pyqtgraph,meganbkratz/acq4,meganbkratz/acq4,onlyjus/pyqtgraph,Lx37/pyqtgraph,derricw/pyqtgraph,tropp/acq4,welshjf/pyqtgraph,Lx37/pyqtgraph,benvermaercke/pyqtgraph,gvalentine/pyqtgraph,campagnola/acq4,pbmanis/acq4,pmaunz/pyqtgraph,nmearl/pyqtgraph,mgraupe/acq4,mpvismer/pyqtgraph,tropp/acq4,JenSte/pyqtgraph,onlyjus/pyqtgraph,mgraupe/acq4,tropp/acq4,campagnola/acq4,jlombacher/pyqtgraph,welshjf/pyqtgraph,carlomt/dicom_tools,gvalentine/pyqtgraph,JenSte/pyqtgraph,petebachant/pyqtgraph,mpvismer/pyqtgraph