Fix copy issue when destination is a directory

Author: makermelissa

adafruit_shell.py

@@ -351,7 +351,7 @@ def copy(self, source, destination):
             if os.path.isdir(source):
                 shutil.copytree(source, destination)
             else:
-                shutil.copyfile(source, destination)
+                shutil.copy(source, destination)
 
     def remove(self, location):
         """