Merge pull request #60 from BenQoo/beta

lv_group: fix memory leak.

lv_core/lv_group.c

@@ -51,6 +51,16 @@ lv_group_t * lv_group_create(void)
     return group;
 }
 
+/**
+ * Delete a group object
+ * @param group pointer to a group
+ */
+void lv_group_del(lv_group_t * group)
+{
+    lv_ll_clear(&(group->obj_ll));
+    lv_mem_free(group);
+}
+
 /**
  * Add an object to a group
  * @param group pointer to a group
@@ -83,8 +93,8 @@ void lv_group_remove_obj(lv_obj_t * obj)
     LL_READ(g->obj_ll, i) {
         if(*i == obj) {
             lv_ll_rem(&g->obj_ll, i);
+            lv_mem_free(i);
             obj->group_p = NULL;
-            break;
         }
     }