Merge branch 'BIOWDL-265' of https://github.com/biowdl/tasks into BIOWDL-265

CPAT.wdl

biopet/biopet.wdl

bowtie.wdl

bwa.wdl

collect-columns.wdl

cutadapt.wdl

fastqc.wdl

fastqsplitter.wdl

gatk.wdl

gffcompare.wdl

gffread.wdl

hisat2.wdl

htseq.wdl

manta.wdl

multiqc.wdl

picard.wdl

samtools.wdl

somaticseq.wdl

star.wdl

strelka.wdl