Added JVM health usage query function
Added the health ns to the main app

Removed some unnecessary functions
Moved the crossing functionality to its own ns

Also added init & destroy functions
Version bump up to 0.3.0

Updated the README and sample upstart script
Added tests
Merge pull request #2 from ministryofjustice/health

Health & modularity
Added flattening of PDFs
Merge pull request #3 from ministryofjustice/health

Added flattening of PDFs
Updated all the dependencies

As well as Clojure itself