Merge pull request #26 from wtsi-npg/master

Merge changes for release 0.8.4
Check if required arguments are present
Correctly handle version 0 and 1 .sim number formats; raise error for unknown format code
Changed spacing
Option to randomly insert NaN/INF into output
Deleted test of obsolete script
Remove obsolete intensity metric code; use simtools instead
Use simtools for intensity metrics
Fixed typo
Corrected qw style
Updated intensity QC
Added simtools dependency for QC
Removed obsolete files
Merge pull request #27 from wtsi-npg/master

Changes from release 0.8.5
Merge branch 'master' into devel
Incremented version number
Faster and more memory-efficient manifest sort
Initial commit
Create and output manifest JSON piecewise instead of in one giant data structure
Check JSON parses correctly