Toggled negative SV len for deletions to be positive.
Toggled negative SV len for deletions to be positive.

vcflib/vcflib,ekg/vcflib,vcflib/vcflib,vcflib/vcflib,ekg/vcflib,ekg/vcflib,vcflib/vcflib,vcflib/vcflib,ekg/vcflib,ekg/vcflib,vcflib/vcflib,vcflib/vcflib,vcflib/vcflib