Merge pull request #25 from mgcam/devel

pull changes (listing of missing dependencies) from my devel to wtsi devel
Merge pull request #26 from wtsi-npg/devel

pull request from wtsi devel to wtsi master to create point release 73.8
Merge pull request #27 from wtsi-npg/master

pull changes from wtsi master (point release 73.8) to wtsi devel
Merge pull request #7 from wtsi-npg/devel

pull changes from wtsi devel to my devel