Merge pull request #16 from wtsi-npg/devel

pull pre-74.7 form wtsi-devel for testing
Merge pull request #56 from wtsi-npg/master

Merge 74.7 back to devel
Remove unused, mispelt and misleading code.
Merge pull request #57 from dkj/devel

Remove unused, mispelt and misleading code.
Add comment with warning and rationale for Perl taint mode
Merge pull request #58 from dkj/devel

Add comment with warning and rationale for Perl taint mode
Merge pull request #17 from wtsi-npg/devel

pull changes from devel
switch ref repository root to scratch110; update Changes
Merge pull request #59 from mgcam/devel

switch ref repository root to scratch110
Merge pull request #60 from wtsi-npg/devel

pull from wtsi devel to master to create release 47.8 (switch to scratch110)