Fix initialisation of myxroute->installed.
Fix initialisation of myxroute->installed.

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