added '--debug-errrors' command line param and context.debug_errors; when an exception is raised inside a service handling function, opens a pdb.post_mortem;  is relatively strict: only when dev=True, and serve_ufork=False
added '--debug-errrors' command line param and context.debug_errors; when an exception is raised inside a service handling function, opens a pdb.post_mortem;  is relatively strict: only when dev=True, and serve_ufork=False

paypal/support,paypal/support