- Fix issue with "recordstatus"
   - Rationalise short option names: removed -d, -E, -r
   - Remove cmdcheck target: specific to LaTeX3 kernel work
   - New target "manifest" for construction of file manifests
     automatically
   - New "auxfiles" variable
   - New --textmfhome option to allow customisation of
     local installation
   - New --dry-run option for installation
   - Sort list of tests to avoid system-dependent ordering
   - New --shuffle option to run tests in a random order
   - Split l3build into multiple files for improved maintenance
   - Internal improvements