Fixes
Fixes

- Remove unnecessary bind to normalised on initialize function.
- avoid to re-render the widget when activating/deactivating
normalisation
- Refactors make _resetWidget to make use of _updateStats

splashblot/dronedb,CartoDB/cartodb,splashblot/deep-insights.js,splashblot/dronedb,CartoDB/cartodb,splashblot/deep-insights.js,splashblot/dronedb,CartoDB/cartodb,splashblot/dronedb,CartoDB/cartodb,splashblot/dronedb,CartoDB/cartodb