Restore Morning Email

[wmwolf]

Due to changes in the backend of the testhub, the morning e-mail will not work in the new testhub as is. The "all commits" page will be a decent substitute in the short term, but this is pretty critical.

[wmwolf]

The e-mail (even in the current "old" testhub) should also be sent to the slack testing channel so we aren't beholden to slow listserves.

[wmwolf]

Though this isn't completed, the current morning mailer has moved over to the mailgun service from sendgrid, which was causing problems. This actually makes development much easier due to weirdness we had with sendgrid, and we're also sending it to the slack now. Styling is stripped by slack, and their support tells me the only way to get it back is through building our own integration. Not worth it to me at this point.

[wmwolf]

With the launch of "new testhub" and the official mesa repo, the morning e-mail lives again, but not without cost. It has gained

• ability to know when a commit has not been fully tested (indicates x out of y cases tested)
• ability to indicate how many computers have tested at least one case vs all cases (x computers tested; y complete)

It is currently missing

• memory leak detection
• runtime bloat detection

These two are always more annoying to implement, and now they need to be aware of test instances running optional inlists or not. More to come, but it's no longer blocking development from resuming.