Ticket

I'm getting very tempted to change our email handling to map better to our emerging action framework.  I've been thinking we should:

1. add card event settings.  We get rid of *send and add something like *on create, *on update, and *on delete
2. add an email template cardtype, which could be a value (or values) of the above.  Essentially the same structure as the '+email config' cards (by convention) now.   (aside - this has parallels to the *layout patterns  -- I think that should be a cardtype too).  Note that we'll need to give a good bit of thought to nomenclature -- there are lots of "email" cards out there already.  

Other improvements needed:

• add time event settings, like *hourly, *daily, *monthly (not sure how much these complicate installation, but I'm guessing f'in with cron jobs can get icky.  probably best to wait and make this a non-core module.
•  add other "action" cardtypes.  Not sure exactly how to organize them, but I imagine we'd want to be able to trigger a wide range of HTTP calls, and maybe some calls to other protocols?  We can gather ideas here if necessary, but I mainly mention it to point out the significance of the Email cardtype (otherwise, add a preview option
• (module) integration with bulk mail service.  Impressed with mailchimp.com.  Haven't used but solid api / docs.
• more explicit permission granting.  Pretty sure this is needed to make sure that watcher notifications don't let people use watching to see things they shouldn't.  (can explain later.  consider this a flag)
• add some indication of outcome of flexmail attempt
• If a card is in a set that triggers email, add a menu item under advanced that indicates this, and clicking on it goes to the relevant email setup card.