boxplots: prepare plots for possible HPCA paper

make plots not have rdtsc mixed in

make autogenerated Y axis ranges a bit better
generate_results: some changes to generate outlier plots

not really code changes, but commented out code that allowed
changing the first core2 event to see which one was causing
the overhead spikes
core2 results: based on new machine

previous core2 results are still there but in new directory