Do not calculate route through self
Tick = 1 initially
Nicer diagnostics
Improve routing algorithm

Do less ticks
Reduce message size and receive/3 complexity

Now nodes broadcast only their shortest paths instead of whole routing
table. Future work: further optimization is possible (to broadcast only
*changed* shortest paths).
Improve escalation algorithm
Fix GCC warning
Improve Makefile
Add "via" to shortest array