Add SessionId
Session data layer definition
Add session.FutureCache
Add FutureCache.set
Add Session implementation
Session Id parsing
SessionInfo serialization
Update specs2 and IsRed versions
First cut at a Redis data layer
Upgrade Skene to 0.2.0
First crack at SessionProvider
Refactor SessionProvder for testability
Bump to version 0.2
Fix ttl calculation
Add convenience constructor for Redis data layers
Add session status logging
Add Session.token