Failed attempts to increase remote throughput.
Updated to newest Akka release.
Cleaned up imports.
Snapshot failure is reported.

And not fatal.
Merge branch 'master' into scala-2.11-akka-2.3.2-migration

Conflicts:

src/main/scala/com/signalcollect/nodeprovisioning/local/LocalNodeProvisi
oner.scala
Simple flow control.

Problem: Requires very short heartbeat intervals.
Increasing Netty pool sized.
Implement trait Timeable which can be used to measure how long vertices are working
cleanup README.md for this branch
Minor fixes.
Implemented decentralized PingPong throttling.
time signal, delivery and collect
More aggressive throttling, only during comp.
Best throttling settings so far.
Using the Akka-Kryo JAR dependency again.
Adapting some Akka params to the number of cores.
Initializing throttling together with idle detection.
Disabling ping pong throttling on 1 node.
Merge branch 'pingpong-throttling' into scala-2.11-akka-2.3.2-migration
Merge branch 'scala-2.11-akka-2.3.2-migration' into mergemigration

Conflicts:
	README.md
	build.sbt
	src/main/scala/com/signalcollect/configuration/AkkaConfig.scala
	src/main/scala/com/signalcollect/coordinator/DefaultCoordinator.scala
	src/main/scala/com/signalcollect/nodeprovisioning/local/LocalNodeProvisioner.scala