fixes #5 check pls

Author: evgen-d

composer.json

@@ -21,6 +21,7 @@
     "minimum-stability": "dev",
     "require": {
         "yiisoft/yii2": "2.0.*",
+        "yiisoft/yii2-jui": "2.0.*",
         "bower-asset/dropzone": "~3.10"
     },
     "require-dev": {
@@ -31,4 +32,4 @@
             "devgroup\\dropzone\\": ""
         }
     }
-}
+}