Reallocate routes when the table shrinks a lot.
Reallocate routes when the table shrinks a lot.

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