dynamically determine padding size for alignment
dynamically determine padding size for alignment

This is better than the previous solution of a hard cutoff, and will
allow handling of arbitrary-sized alleles.

hyphaltip/vcflib,ekg/vcflib,jewmanchue/vcflib,ekg/vcflib,alimanfoo/vcflib,alimanfoo/vcflib,hyphaltip/vcflib,tomdcsmith/vcflib,harshinamdar/vcflib,harshinamdar/vcflib,vcflib/vcflib,alimanfoo/vcflib,andersje/vcflib,wzugang/vcflib,zhmz90/vcflib,ashishjain1988/vcflib,jewmanchue/vcflib,ashishjain1988/vcflib,harshinamdar/vcflib,zhmz90/vcflib,wzugang/vcflib,jewmanchue/vcflib,hyphaltip/vcflib,ashishjain1988/vcflib,wzugang/vcflib,zhmz90/vcflib,glennhickey/vcflib,zeeev/vcflib,jewmanchue/vcflib,zeeev/vcflib,vcflib/vcflib,alimanfoo/vcflib,hyphaltip/vcflib,andersje/vcflib,alimanfoo/vcflib,hyphaltip/vcflib,ashishjain1988/vcflib,zeeev/vcflib,travc/vcflib,andersje/vcflib,alimanfoo/vcflib,glennhickey/vcflib,vcflib/vcflib,ekg/vcflib,hyphaltip/vcflib,harshinamdar/vcflib,wzugang/vcflib,glennhickey/vcflib,harshinamdar/vcflib,zeeev/vcflib,travc/vcflib,glennhickey/vcflib,tomdcsmith/vcflib,glennhickey/vcflib,vcflib/vcflib,zhmz90/vcflib,travc/vcflib,andersje/vcflib,wzugang/vcflib,glennhickey/vcflib,ashishjain1988/vcflib,zhmz90/vcflib,vcflib/vcflib,wzugang/vcflib,vcflib/vcflib,jewmanchue/vcflib,zeeev/vcflib,ekg/vcflib,ekg/vcflib,zhmz90/vcflib,ashishjain1988/vcflib,vcflib/vcflib,andersje/vcflib,jewmanchue/vcflib,andersje/vcflib,tomdcsmith/vcflib,harshinamdar/vcflib,zeeev/vcflib,vcflib/vcflib