ENH: change to use array view in signal/_peak_finding.py
BUG: Center odd size window around index, fixes existing off-by-one eror
MAINT: remove unused function scipy.stats.mstats_basic._kolmog1
MAINT: Fix PEP 8 violation in _peak_finding.py
Merge pull request #3450 from argriffing/remove-kolmog1

MAINT: remove unused function scipy.stats.mstats_basic._kolmog1
Merge pull request #3409 from yotam/master

ENH: change to use array view in signal/_peak_finding.py