update changelog for 1.2.0
update changelog for 1.2.0
Vishwa1311/incubator-fineract,Vishwa1311/incubator-fineract,RanjithKumar5550/RanMifos,RanjithKumar5550/RanMifos,Vishwa1311/incubator-fineract,RanjithKumar5550/RanMifos