FromConfig bug verification 492
Revert "FromConfig bug verification 492"

This reverts commit b6acba858169df819a14809a7f996cf03ce7f383.
Fixed some typos and invalid coloring in PingPong benchmark
Merge pull request #494 from Ravadre/pingpong-fix

Fixed some typos and invalid coloring in PingPong benchmark
Add Immutable AVL Trees

Originally from http://justinmchase.com/2011/12/13/immutable-avl-tree-in-c/
Add ChildrenContainer

To use the immutable avl trees ActorRef must be IComparable so I implemented that for ActorRef and ActorPath
Add CAS helper methods for transforming values atomically
Switch to use ChildrenContainer in ActorCell
Make it possible to check inner exceptions when filtering exceptions using TestKit's EventFilter
Add overload to inline actors that forwards the Actor Context to the config-action, to be able to create children.
Change property IAtomicCounter<T>.Next to to the function Next()

When debugging, the debugger calls Next, which increases the value.
When handling Failed message ignore if child is invalid
Suspend children on failure

This is done in the new ActorCell.HandleInvokeFailure
Implement ActorCell.FaultHandling.cs
Implement more tests in SupervisorHierarchySpec