takes into account currently loaded sample (reading of nSampleNumber variable)
uses new load_sample and unload_sample functions
do not recalculate image_number
added last_image_saved function: returns last saved image number
if there is an overlap, set shutterless to False
get_measured_intensity: return 0
fixed wedges
improved data collection loop for pixel detectors: use 'last_image_saved'
method to get number of last image saved
removed inverse beam from data collection code (it is handled by the
queue)
check for already loaded sample when loading
unload loaded sample when loading new one if needed
properly set the loaded sample flag