Deal with objects outside of ROI

[kadrlica]

Be careful with spatialBin function when objects fall outside of ROI. This may actually be throwing an error now (which is not terrible). Need to look into more deeply.

[kadrlica]

spatialBin is printing a warning if objects are outside the ROI. The question is whether this warning refers to the first instance of spatial bin (which may be ok?) or to subsequent instances (which require more digging).