Use integer arithmetic when computing neighbour rxcost.
Use integer arithmetic when computing neighbour rxcost.

Gwendocg/babeldToS,dtaht/babeld-shortrtt-metrics,wlanslovenija/babeld,wlanslovenija/babeld,tcatm/babeld,Gwendocg/babeldToS,sudomesh/babeld,woniullb/babeld,boutier/babeld,jech/babeld,Drooids/babeld,jech/babeld