Include test results in notification

[jhalterman]

It would be sweet if some basic test result info could be sent over in the notification, something along the lines of:

Tests passed: 123, failed: 3, ignored: 1

...with a link to the jenkins test report included.

[rspeer]

The human-readable description on the "Build history" page, such as "2 tests are still failing", would be great to have instead of just "UNSTABLE".

[pangratz]

👍