GridLayout $destroy eventBus instance

Author: aiankile

src/components/GridLayout.vue

@@ -128,7 +128,7 @@
                 self.dragEvent(eventType, i, x, y, h, w);
             };
 
-            self._provided.eventBus =  new Vue();
+            self._provided.eventBus = new Vue();
             self.eventBus = self._provided.eventBus;
             self.eventBus.$on('resizeEvent', self.resizeEventHandler);
             self.eventBus.$on('dragEvent', self.dragEventHandler);
@@ -137,6 +137,7 @@
             //Remove listeners
             this.eventBus.$off('resizeEvent', this.resizeEventHandler);
             this.eventBus.$off('dragEvent', this.dragEventHandler);
+			this.eventBus.$destroy();
             removeWindowEventListener("resize", this.onWindowResize);
 			this.erd.uninstall(this.$refs.item);
         },