Added proper SentMessagesCounter.toString method
Renamed file SentMessagesCounter to DefaultSentMessagesCounter
AkkaWorker.moveVertex respects passed time limit
Added a weight field to the vertex requests
Added Partitioner1
Added DynamicPartitionerConfiguration
Added graph creation parameter withDynamicPartitionerConfiguration
examples.PageRank does not use a dynamic partitioner by default
Added first simple scheduler infrastructure
Added Partitioner2
Modified the moveVertex and takeVertex methods to return more
meaningful values
Improved moveVertex/takeVertex methods
AkkaWorker returns VertexMovedSuccessfully if the vertex is already
available on the target worker