Switching to Ada 2005.  Cleaning out unneeded '.gitignore' files.
Ada 2012 -> Ada 2005 + style fixes.
Style fixes.
Ada 2012 -> Ada 2005.
Ada 2012 -> Ada 2005 + style fixes.
Style fixes.
Style fix.
Imported basic test framework from Black.
Removing unused compilation units.
Noting that we have excessive cyclomatic complexity in procedure Change_State.
Handle the case of no generated source files properly.
Extended clean-up.  Generate source metrics.  Run tests.