Merge branch 'develop' into bcftools+calling
bcf_remove_alleles: Assume diploid genotypes if the ploidy cannot be determined, better to proceed than crash.
vcf: Update rlen on BCF output, this is important in BCF indexing, rlen is used as it is. Todo: also END should be checked with symbolic alleles
Merge branch 'bcftools+calling' into develop
Merge branch 'develop' into debian/unstable