The fix to add "-S" to "env" to allow the "-B" switch to be passed
to python apparently doesn't work in CentOS, so both switches have
been removed.  Moved the cdl2spi.py script back to common/ because
it is used by scripts in both common/ and runtime/;  an additional
line in the top-level Makefile is then needed to install cdl2spi.py.
diff --git a/runtime/rename_project.py b/runtime/rename_project.py
index 01ccf0b..4d541f0 100755
--- a/runtime/rename_project.py
+++ b/runtime/rename_project.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env -S python3 -B
+#!/usr/bin/env python3
 #
 # rename_project.py ---  Perform all tasks required for renaming a project.
 #