Removed superfluous println in the SudokuHelper
Merge pull request #92 from tmsklr/dev/sudokuprintln

Removed superfluous println in the SudokuHelper
NodeProvisionerActor expects now a proper NodeReady message and not a
String; caused the distributed version to hang.
Merge pull request #93 from tmsklr/dev/nodereadymsg

NodeProvisionerActor expects now a proper NodeReady message and not a String
Added VertexLocator, DefaultVertexLocator, and the corresponding test
case DefaultVertexLocatorSpec
Replaced the DefaultVertexToWorkerMapper through the VertexLocator
approach.
Added DynamicPartitioner trait.
Added AbstractDynamicPartitioner
Added withDynamicPartitionerCreator to the GraphBuilder and
-Configuration.
Nodes create a dynamic partitioner if it is specified.
Added some dummy messages for the dynamic partitioner.
Added and integrated SentMessagesCounter
Setting a DynamicPartitioner on a node works now
Added MessageRecipientRegistry.registrationsDone method.
Added possibility to access internal worker information from the node.
Moved trait Node to NodeApi.
Created a SentMessagesCounter interface to pass the ModularitySpec
Added PartitionerApi similar to the GraphApi; added a Graph.partition
method