Update composer dependency

Author: miramir

composer.json

@@ -11,7 +11,7 @@
     "minimum-stability": "stable",
     "require": {
         "php": ">=5.4.0",
-        "fxp/composer-asset-plugin": " ~1.0.0",
+        "fxp/composer-asset-plugin": " >=1.1.0",
         "yiisoft/yii2": "~2.0.0"
     },
     "require-dev": {