Update flow-bin to the latest version 🚀 (#158)

* chore(package): update flow-bin to version 0.64.0

* chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
         "@babel/preset-stage-2": "^7.0.0-beta.35",
         "browserify": "^15.0.0",
         "coveralls": "^3.0.0",
-        "flow-bin": "^0.63.0",
+        "flow-bin": "^0.64.0",
         "husky": "^0.14.3",
         "jasmine-core": "^2.8.0",
         "js-yaml": "^3.10.0",

yarn.lock

@@ -1935,9 +1935,9 @@ find-up@^1.0.0:
     path-exists "^2.0.0"
     pinkie-promise "^2.0.0"
 
-flow-bin@^0.63.0:
-  version "0.63.1"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.63.1.tgz#ab00067c197169a5fb5b4996c8f6927b06694828"
+flow-bin@^0.64.0:
+  version "0.64.0"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.64.0.tgz#ddd3fb3b183ab1ab35a5d5dec9caf5ebbcded167"
 
 follow-redirects@1.0.0:
   version "1.0.0"
@@ -4134,7 +4134,7 @@ rollup-pluginutils@^2.0.1:
     estree-walker "^0.3.0"
     micromatch "^2.3.11"
 
-rollup@0.55.0:
+rollup@^0.55.0:
   version "0.55.0"
   resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.55.0.tgz#e547149333bdd91457a9e8101cf86783e21c576e"