Merge pull request #2 from akkadotnet/dev

Dev
Merge pull request #191 from Aaronontheweb/master

akka v0.6.1 - IN PRODUCTION
Propertyless messages are now singletons with a static `.Instance` property
Merge branch 'dev' of https://github.com/akkadotnet/akka.net.git
Removed SmallestMailboxGroup
Dispatchers now parse throughput-deadline-time
Added ActorRef.Forward
Refactored Tell to Forward in some places
Merge branch 'dev' of https://github.com/akkadotnet/akka.net into dev
fixed the SingleThreadDispatcher
Merge remote-tracking branch 'upstream/dev' into dev
Merge remote-tracking branch 'upstream/master' into dev
Akka.NET v0.6.2
Made singleton message ctor's public for serialization
Added test to ensure singletons with private ctor can be serialized/deserialized
TestActorRef default name must start with $$. Fixes #211
Merge pull request #212 from HCanber/testactorref-name-bug-211

TestActorRef default name must start with $$. Fixes #211
F# MapReduce uses InternalActorRef. It should be using ActorRef. Breaking change!
Fix #209. A closed mailbox shouldn't process usermsgs

A terminated actor should also drain all messages to DeadLetterMailbox
modified DeadLetterListener to log actor path for both Sender and Recepient