detail bugfix in bam_alignment and bam_markduplicate wrappers
code from Kate's git_versioning branch pulled in; RSC keywords removed from scripts and tests; the distribution test does not perform pod tests (separate tests available), checks that module version matches distribution version; appropriate use of Readonly module in scripts and modules
Merge branch 'devel' of https://github.com/mgcam/npg_seq_common into git_versioning