chore(package): update rollup to version 0.59.0

Author: greenkeeper[bot]

package.json

@@ -75,7 +75,7 @@
     "gulp-rename": "^1.2.2",
     "gulp-sourcemaps": "^2.6.1",
     "gulp-uglify": "^3.0.0",
-    "rollup": "^0.58.0",
+    "rollup": "^0.59.0",
     "rollup-plugin-buble": "^0.19.0",
     "rollup-plugin-commonjs": "^9.0.0",
     "rollup-plugin-node-resolve": "^3.0.3",