chore(deps): update dependency rollup to v0.64.0 (#59)

Author: renovate[bot]

package.json

@@ -49,7 +49,7 @@
     "prettier-package-json": "1.6.0",
     "puppeteer": "1.6.2",
     "rimraf": "2.6.2",
-    "rollup": "0.63.5",
+    "rollup": "0.64.0",
     "rollup-plugin-babel": "4.0.0-beta.8",
     "rollup-plugin-commonjs": "9.1.4",
     "rollup-plugin-node-resolve": "3.3.0",

yarn.lock

@@ -6008,9 +6008,9 @@ rollup-pluginutils@^2.0.1, rollup-pluginutils@^2.3.0:
     estree-walker "^0.5.2"
     micromatch "^2.3.11"
 
-rollup@0.63.5:
-  version "0.63.5"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.63.5.tgz#5543eecac9a1b83b7e1be598b5be84c9c0a089db"
+rollup@0.64.0:
+  version "0.64.0"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.64.0.tgz#8b6865605920bcfae74e4ea7b69799a335a50d01"
   dependencies:
     "@types/estree" "0.0.39"
     "@types/node" "*"