introduced more precise plotting for checking update_spws_beg (for cell
11 it looks alright)
corrected IPSPs amplitude is now checked based on filtered data (so that
spikes are not highering it up)
in addition to filtering adding moving to baseline in finding the
amplitude of each IPSP (if not applied, many ipsps are ommitted because
in the starto of spw)
on the way of separating to distant ipsp groups to separate spws