Add test for RoutingTableEntry's clone() method
Fix bug in AODVNode's setRoutingTable() method
Extend tests to ensure diversity of routing tables after setting them on different nodes
Ensure first message is only sent to neighbors when starting a route discovery
Ensure that starting a routing discovery only affects neighbors
Merge branch 'master' of https://github.com/jdno/AlgoAnim-AODV

# By Sascha
# Via Sascha
* 'master' of https://github.com/jdno/AlgoAnim-AODV:
  Implement printGraph to print the graph with the neighbors on the console
  Graph is undirected now