adding toggle() and destroy() functions to the Datetimepicker interface.

bootstrap.v3.datetimepicker/bootstrap.v3.datetimepicker.d.ts

@@ -69,6 +69,8 @@ declare module BootstrapV3DatetimePicker {
         show(): void;
         disable(): void;
         enable(): void;
+        destroy(): void;
+        toggle(): void;
     }
 
 }