Report table metrics like other services
Report table metrics like other services

Using `monitor.prefix('data.builds')` makes a lot of sense, since something like a staging environment of `taskcluster-github`, should pass a different `project` name to monitor... if it passes the same project name, then it should be the same data in tables, etc...

In testing we use a different project name, well, we mock monitor... but the concept is reasonable I hope :)
taskcluster/taskcluster-github