date time picker UI

Change-Id: Icb1f5f959e640f49f1701a35892c40319e8ed08c
fixed propagating date change to model

Change-Id: I7f647d0fc3bd5e34645fe657c884134e04129218
Merge branch 'feature/datetimepicker' into develop
Merge branch 'release/datetimepicker'