Fix bug in tranges for calculating CodeCorr as a function of time
Clean up normalize()
Add normalize_range()
Use globals for width and overlap of LFP pratio time range windows
Recalculate tranges on every CodeCorr.calc() call
Factor out calculating cc(t) from plotting cc(t)
Use globals for width and overlap of cc(t) time range windows
Comments
Scatter plot cc(t) vs LFP pratio(t)