Huge slim-down of the app and the analytics it collects

This ditches the "recorder" integration (which snapshotted X/Y/etc data of each connected user to a separate Redis server) and the "calea" tapping backdoor that let an admin connect in-browser to the node of his/her choice, rather than going through the front-end load balancer.

It also just generally rips out some unneeded code and files, now that we're not using Nodejitsu, and don't care so heavily about precise analytics.