Merge branch 'master' of gitlab_lbmc:pipelines/nextflow

src/docker_modules/Bowtie2/2.3.4.1/Dockerfile

src/nf_modules/Bowtie2/bowtie2.nf

src/nf_modules/Bowtie2/tests/mapping_single.nf

src/nf_modules/FastQC/fastqc.nf

src/nf_modules/FastQC/tests/fastqc_paired.nf

src/nf_modules/FastQC/tests/fastqc_single.nf

src/nf_modules/MultiQC/multiqc.nf

src/nf_modules/MultiQC/tests/multiqc_paired.nf

src/nf_modules/MultiQC/tests/multiqc_single.nf