Continued working on cost/optimization functions
Nodes answer ConnectRequests of child nodes
(This might be neccessary if a child node tries to connect to it's parent after being disconnected because of a PassNodeRequest)
More channels and using those different channels now, too
Added statistics for connection retrys (how many?)
Forgot to add distribution of different channels
Minor
Nodes start their players not before receiving 1 chunk of every stripe
Don't start the player until one received <numStripes> consecutive chunks
Keep track of last received sequence number in earch tree separately
Minor