Update CHANGES for 1.3.2.
Update CHANGES for 1.3.2.

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