[C77]Added a utility to change the case of file extension
[C77] added filename utility to MANIFEST
Merge branch 'devel' of github.com:wtsi-clarity/wtsi_clarity into use_caseinsensitive_file_extensions
[C77] accidentally changed a file extension
Merge pull request #157 from ke4/use_caseinsensitive_file_extensions

Use caseinsensitive file extensions