Merge pull request #27 from wtsi-npg/devel

Preparation for release 0.06
Merge pull request #28 from wtsi-npg/devel

now creates data directory and removes empty lib directory
Merge pull request #34 from wtsi-npg/devel

pull request from wtsi devel to master - release 0.07
Merge pull request #35 from wtsi-npg/master

pull request from wtsi master to devel - release 0.07