[galaxy-commits] commit/galaxy-central: dan: Update existing GATK tools. Add 4 new GATK tools: VariantAnnotator, VariantFiltration, VariantRecalibrator, ApplyRecalibration, ValidateVariants, VariantEval and CombineVariants. All GATK tool wrappers are still considered BETA and (workflow/rerun/etc) backwards-incompatible changes should be expected.