Improve FDR/FNR based validation plots
Improve FDR/FNR based validation plots

Improves spacing and display of FNR and FDR based validation plots as
a generic alternative, without special scaling/zeroing, for showing
differences between methods.

elkingtonmcb/bcbio-nextgen,gifford-lab/bcbio-nextgen,lpantano/bcbio-nextgen,vladsaveliev/bcbio-nextgen,a113n/bcbio-nextgen,biocyberman/bcbio-nextgen,mjafin/bcbio-nextgen,chapmanb/bcbio-nextgen,mjafin/bcbio-nextgen,vladsaveliev/bcbio-nextgen,guillermo-carrasco/bcbio-nextgen,biocyberman/bcbio-nextgen,gifford-lab/bcbio-nextgen,vladsaveliev/bcbio-nextgen,lbeltrame/bcbio-nextgen,lbeltrame/bcbio-nextgen,elkingtonmcb/bcbio-nextgen,Cyberbio-Lab/bcbio-nextgen,lpantano/bcbio-nextgen,biocyberman/bcbio-nextgen,gifford-lab/bcbio-nextgen,chapmanb/bcbio-nextgen,brainstorm/bcbio-nextgen,lbeltrame/bcbio-nextgen,lpantano/bcbio-nextgen,a113n/bcbio-nextgen,guillermo-carrasco/bcbio-nextgen,elkingtonmcb/bcbio-nextgen,chapmanb/bcbio-nextgen,a113n/bcbio-nextgen,brainstorm/bcbio-nextgen,mjafin/bcbio-nextgen,Cyberbio-Lab/bcbio-nextgen,brainstorm/bcbio-nextgen,guillermo-carrasco/bcbio-nextgen,Cyberbio-Lab/bcbio-nextgen