update lib to allow set value through javascrpti if switcher is readonly or disabled

web_widget_boolean_switch/static/lib/bootstrap-switch/README.md

@@ -7,3 +7,5 @@ from: https://github.com/nostalgiaz/bootstrap-switch
 directories at this [revision](https://github.com/nostalgiaz/bootstrap-switch/
 tree/a39a1e9d6059822235bf4a9c0e7700a7e6a5ad19/dist) the september 30th 2015.
 
+The default library doesn't allow to change value through javascript if 
+switcher is set `readonly` or `disabled`.

web_widget_boolean_switch/static/lib/bootstrap-switch/bootstrap-switch.js

@@ -135,9 +135,6 @@
         if (typeof value === "undefined") {
           return this.options.state;
         }
-        if (this.options.disabled || this.options.readonly) {
-          return this.$element;
-        }
         if (this.options.state && !this.options.radioAllOff && this.$element.is(":radio")) {
           return this.$element;
         }