update singularity

workflow/rules/bamCoverage.rules

workflow/rules/bed_to_gff.rules

workflow/rules/bowtie2_index.rules

workflow/rules/bowtie2_mapping.rules

workflow/rules/chipuanar.rules

workflow/rules/compute_idr.rules

workflow/rules/cutadapt.rules

workflow/rules/fastqc.rules

workflow/rules/feature_counts.rules

workflow/rules/intersectionApproach.rules

workflow/rules/macs2.rules

workflow/rules/mark_duplicates.rules

workflow/rules/multiqc.rules

workflow/rules/preIDR_PPR.rules

workflow/rules/preIDR_Pool.rules

workflow/rules/preIDR_SPR.rules

workflow/rules/remove_blacklist.rules

workflow/rules/select_peaks.rules

workflow/rules/spp.rules

workflow/rules/union_peaks.rules