Change the Load Data Section

to be consistent with http://cfpb.github.io/qu/getting-started.html
. There is no function `(ensure-mongo-connection)`
Merge pull request #145 from zachcp/patch-1

Change the Load Data Section
All datasets should now be able to be loaded
Merge pull request #148 from cndreisbach/fix-loading

All datasets should now be able to be loaded
Fix downgraded JSON version breaking build
Add metric collection around aggregation cache hits, misses, and waits