hide src/* files not necessary for users

src/.docker_modules/subread/1.6.4/docker_init.sh

src/.docker_modules/tophat/2.1.1/Dockerfile

src/.docker_modules/tophat/2.1.1/docker_init.sh

src/.docker_modules/trimmomatic/0.36/Dockerfile

src/.docker_modules/trimmomatic/0.36/docker_init.sh

src/.docker_modules/ucsc/375/Dockerfile

src/.docker_modules/ucsc/375/docker_init.sh

src/.docker_modules/umi_tools/0.5.4/Dockerfile

src/.docker_modules/umi_tools/0.5.4/docker_init.sh

src/.docker_modules/umi_tools/1.0.0/Dockerfile

src/.docker_modules/umi_tools/1.0.0/docker_init.sh

src/.docker_modules/urqt/d62c1f8/Dockerfile

src/.docker_modules/urqt/d62c1f8/docker_init.sh

src/.psmn_modules

src/.singularity_modules/bcftools/1.7/bcftools

src/.singularity_modules/bcftools/1.7/bcftools.def

src/.singularity_modules/bcftools/1.7/build.sh

src/.singularity_modules/bedtools/2.25.0/bedtools

src/.singularity_modules/bedtools/2.25.0/bedtools.def

src/.singularity_modules/bedtools/2.25.0/build.sh