Merge pull request #3599 from angular-ui/greenkeeper/rollup-0.53.4

Update rollup to the latest version 🚀

Author: christopherthielen

package.json

@@ -97,7 +97,7 @@
     "karma-webpack": "2.0.9",
     "lodash": "^4.5.1",
     "replace-in-file": "3.1.0",
-    "rollup": "0.53.3",
+    "rollup": "0.53.4",
     "rollup-plugin-node-resolve": "3.0.0",
     "rollup-plugin-sourcemaps": "^0.4.1",
     "rollup-plugin-uglify": "2.0.1",

yarn.lock

@@ -4157,9 +4157,9 @@ rollup-pluginutils@^2.0.1:
     estree-walker "^0.3.0"
     micromatch "^2.3.11"
 
-rollup@0.53.3:
-  version "0.53.3"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.53.3.tgz#e7b6777623df912bd0ca30dc24be791d6ebc8e5a"
+rollup@0.53.4:
+  version "0.53.4"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.53.4.tgz#f92ce56ee1d097ad5b6f13951bc80db5fef18113"
 
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"