Exhumed apps/tests
dataCollectionScheme: basic_sim.py: Remove Windows line endings (WTF??) and made executable
Great improvement in dataCollectionScheme:
- implemented ACKs with random delayed retransmission
- node start collecting data only when they have a parent
- refactored forwardMessages to flushMessagesQueue: now it handles any message, as soon as it is in the head of the queue. A message is removed only when correctly transmitted (ACK must be received)
- better log system