[C43] Add test for displaying messages to program status
[C43] Added display message role
[C43] Added display message role to app module/script
[C43] Added display message role to the MANIFEST
fix merge conflict with MANIFEST
Merge pull request #149 from ke4/more_descriptive_error_messages

More descriptive error messages
Prepare for Release 0.41
Merge pull request #150 from wtsi-clarity/devel

Relase 0.41