membes 1.0.0-alpha7

Seventh alpha: on-site event registration is now the default.

• On-site by default. Any event that has registration types in Membes registers on your site. Members never leave the site; paid registrations are recorded as unpaid so Membes sends the invoice.
• Opt-out instead of opt-in. The "Register on this site" checkbox is replaced by "Register on Membes instead", for events that need Membes-only features such as payment at registration or custom registration questions.
• Events with no registration types, events that have ended, or a Membes outage fall back to the Membes registration link, so there is never a dead end.
• Registration types are cached for an hour and refreshed hourly on cron, so listings cost one API call per event per hour.

Upgrading from earlier alphas is not supported: uninstall and reinstall (the on-site field was replaced).