Bumped version to 19.02.0-edge
Bumped version to 19.02.0-edge

heuermh/nextflow,heuermh/nextflow,heuermh/nextflow,robsyme/nextflow,robsyme/nextflow,heuermh/nextflow,heuermh/nextflow,nextflow-io/nextflow,nextflow-io/nextflow,nextflow-io/nextflow,robsyme/nextflow,robsyme/nextflow,robsyme/nextflow,nextflow-io/nextflow,nextflow-io/nextflow