+ Make intervals optional for GATK CombineGVCFs + Updated biowdl-input-converter version. + GATK CombineGVCFs memory was tripled to prevent it from using a lot of CPU in Garbage Collection mode. + Updated parameter_meta sections for Minimap2 and TranscriptClean to wdl-aid format. + Updated cores variable for TALON, the default is now 4. + Updated TALON to version 4.4. + Added parameter_meta sections to the following tools: + htseq + cutadapt + collect-columns + stringtie + fastqc + Updated star default image to 2.7.3a. + Hisat2 now indexes the resulting BAM file. + Samtools index now also works without setting a path for the output. + Bugfix: Biowdl-input-converter now makes sure the output directory exists.