Merge branch 'es6' of ssh://code.fineres.com:7999/~treecat/fineui into es6

.gitignore

@@ -3,3 +3,4 @@ packages/demo/dist
 packages/fineui/dist/*
 !packages/fineui/dist/font
 !packages/fineui/dist/images
+.idea/

packages/fineui/src/base/combination/group.button.js

@@ -86,8 +86,8 @@ export class ButtonGroup extends Widget {
                 this.setValue(newValue);
             })
             : value;
-        if (isKey(value) || isNotEmptyArray(value)) {
-            this.setValue(value);
+        if (isKey(this.options.value) || isNotEmptyArray(this.options.value)) {
+            this.setValue(this.options.value);
         }
     }