Add Slack notifications for new events as long as they're less than 4 days old. Also remove the end-date check for events sharing the same name. This seems to avoid duplicate extra events being added.  The start date check is retained (and fixed).
Add Slack notifications for new events as long as they're less than 4 days old.
Also remove the end-date check for events sharing the same name. This seems to avoid duplicate extra
events being added.  The start date check is retained (and fixed).

jlm/insanity-uploader