Add AWS resource usage to profile view

[cjh1]

A simple overview of resources used, something list:

1 Running instance 2 Volumes

We can work out the endpoints to call.

[cjh1]

Also if the user logs out and they have resources running, it might be nice to give them a reminder ...

[cjh1]

Kitware/cumulus#61 added an endpoint to get the number of running instances for a profile:

GET /user/{id}/aws/profiles/{profileId}/runninginstances

It will return a JSON object of the following form:

{
  "runninginstances": <the number of running instances>
}