Add UI for job-stats-per-node
Add ErrorsController.index()
Error handling
Sort node stats by default
Use new since_days arg
Tweaks to allow for a tiny navbar-right
Add new navigate_with_modal()
Add a menu for node stats
Refactor machine type menu population

And populate the new node stats menu with that. Also partially fixes a
bug some users were seeing with Firefox.
Add a little more error handling and tests
Merge pull request #25 from ceph/node_stats

Add per-node job stats report