updating changelog for  0.7.2
updating changelog for  0.7.2

jlecount-sungevity/holmium.core,kejkz/holmium.core,kejkz/holmium.core,tjlee/holmium.core,tjlee/holmium.core,kejkz/holmium.core,kejkz/holmium.core,tjlee/holmium.core,jlecount-sungevity/holmium.core,tjlee/holmium.core,alisaifee/holmium.core,alisaifee/holmium.core,jlecount-sungevity/holmium.core,alisaifee/holmium.core,jlecount-sungevity/holmium.core,alisaifee/holmium.core