Configuration status numbers in "running" message

[alexrp]

Opening a separate issue for this since #22 ended up being more of a support issue. :)

Right now, the status message is set to something like this:

Waiting to hear about c17e7a3 — Jenkins build 'ExMake-Incoming' #8 is running (Details)

What I'd love to have is this:

Waiting to hear about c17e7a3 — Jenkins build 'ExMake-Incoming' #8 is running — 5 passed, 2 failed, 6 pending (Details)

Those numbers would represent each individual configuration that the job needs to run, e.g. all of the nodes on this page: http://ci.lycus.org/view/All/job/ExMake-Incoming/

I'm not sure how practical this is with the Jenkins API; it's mostly a nice-to-have, not something essential.