Partner Monitoring

Pretty big PR.  Didn't squash because there are several upstream merges.

* Adds a "Monitoring" tab and enables pulling-in New Relic and/or AppDynamics monitoring support
a nice cleanup here might be:
```
var downloadDescriptions = {
  'complete' : 'Complete'.
  ...
};
...
} else {
  self.downloading(downloadDescriptions[value.type]);
}
```