Write events to MongoDB
Add logging
Add Mongo authentication support
Connect to the correct DB
Add the beginnings of a stats page
Add stats page

Use MongoDB aggregation framework to calculate stats
Merge branch 'master' into mongo

Conflicts:
	project/build.scala
User Agent was not being saved to mongodb
Add a graph to stats page
Add timings graph to stats page
Update sbt version
Make ID optional for events
Read recent events from mongodb
Switch Recent Events page to mongodb

Remove in-memory event recorder
Merge branch 'mongo'
Add tests
Extend ScalateServlet directly
Fiddle with import statements because I have mild OCP
Oops, Heroku doesn't support sbt 0.12.4 yet
Add env var for Mongo URL