Merge pull request #65 from casework/add_case_1.0.0

Add CASE 1.0.0

Author: ajnelson-nist

Makefile

@@ -88,6 +88,7 @@ check: \
 
 clean:
 	@$(MAKE) \
+	  PYTHON3=$(PYTHON3) \
 	  --directory tests \
 	  clean
 	@rm -f \
@@ -123,5 +124,6 @@ distclean: \
 download: \
   .git_submodule_init.done.log
 	$(MAKE) \
+	  PYTHON3=$(PYTHON3) \
 	  --directory tests \
 	  download