Suppress warnings
Show the minimum coverage within 5000 bp window
Bin every 2000 bp.  Normalize by the max of the binned coverage, not the max of the unbinned coverage.
Remove NAs from coverage tracks.
Place the coverage tracks' x-axis on the ideogram, so it's clear when we've hit zero coverage
Folded error rate by position
Aesthetic improvements to error rate plot
Remove double specification of cex parameter
Added aligned read count to table, and the pct of reads aligned