chore(package): update flow-bin to version 0.63.0 (#152)

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
         "@babel/preset-stage-2": "^7.0.0-beta.35",
         "browserify": "^14.5.0",
         "coveralls": "^3.0.0",
-        "flow-bin": "^0.62.0",
+        "flow-bin": "^0.63.0",
         "husky": "^0.14.3",
         "jasmine-core": "^2.8.0",
         "js-yaml": "^3.10.0",