Set agrees_to_tos example text to link to site-wide ToS (or a warning message). Also, since a renaming import statement is being used already, change user_logic.logic to just user_logic. Patch by: Todd Larsen Review by: to-be-reviewed

Benjamin Niemann <pink at odahoda dot de>: Main developer of Python target.
Clinton Roy <clinton.roy at gmail dot com>: AST templates and runtime.