add "parser": "babel-eslint" for Flow
add "parser": "babel-eslint" for Flow

Fixes: https://github.com/feross/standard-www/issues/10

SimenB/standard,feross/standard,SimenB/standard,JedWatson/happiness,LinusU/standard,LinusU/standard,standard/standard,JedWatson/happiness,standard/standard,feross/standard