add PixMonitor class here
old PixMonitor is now simply a frame or display
PixMonitor manages monitoring and histogramming of currents (so far)
add pointer to PixMonitor
make sure summaries are dumped without running the GUI
renaming PixMonitor into PixMonitorFrame; dumping summaries if running with GUI
s/PixMonitor/PixMonitorFrame/
dump summaries and monitor stuff during Update
add a few Updates