[INTERNAL] model.Binding: Documentation of change event
[INTERNAL] model.Binding: Documentation of change event

Closes https://github.com/SAP/openui5/issues/897
Change-Id: I9c309d5647f629cdd1f78bb8acdd484f8223ceb0

SAP/openui5,nzamani/openui5,SAP/openui5,nzamani/openui5,olirogers/openui5,SAP/openui5,olirogers/openui5,SQCLabs/openui5,cschuff/openui5,SQCLabs/openui5,SAP/openui5,olirogers/openui5,cschuff/openui5,nzamani/openui5,cschuff/openui5,SQCLabs/openui5