A Riemann Client for Haskell

Nothing too fancy here yet. I might call this Zeta as well if it's not too confusing with previous designs at https://github.com/reifyhealth/zeta.

Todos

• Batched event transmissions
  • Using a worker thread
  • Using an efficient builder
• Msg delivery over TCP
• RiemannT API design
  • Unified API for UDP/asynch/cheap messages versus TCP/synch/guaranteed messages
• Background thread deliving RTS events to a client
• Better tests and documentation
• Eliminate the lens dependency (perhaps?)
• Query language support (see branch dev-queries)
  • Parser/PrettyPrinter combination to form an iso on the HasQuery class