Pre-defined dates for Dashboards

Users can set pre-defined date ranges for DASHBOARDS, without date controls. 

http://app.dashlytics.io/shareboard/token/start-date/end-date/

Date Format: YYYY-MM-DD

Example - http://app.dashlytics.io/shareboard/daYD0OhhgmCep7NICBNXoeU/2016-09-01/2016-10-01