title: expo issue when building for ios with many sound files
body: <p>I am running <code>expo build:ios / android</code> 
  I have 423mb of data split across about 80 sound files. The biggest file is 30mb. When uploading the files i get an error message. </p>
  
  <pre><code>Error: Request failed with status code 413
      at createError (C:\Users\D\AppData\Roaming\npm\node_modules\expo-cli\node_modules\@expo\xdl\node_modules\axios\lib\core\createError.js:16:15)
      at settle (C:\Users\D\AppData\Roaming\npm\node_modules\expo-cli\node_modules\@expo\xdl\node_modules\axios\lib\core\settle.js:17:12)
      at IncomingMessage.handleStreamEnd (C:\Users\D\AppData\Roaming\npm\node_modules\expo-cli\node_modules\@expo\xdl\node_modules\axios\lib\adapters\http.js:236:11)
      at IncomingMessage.emit (events.js:203:15)
      at IncomingMessage.EventEmitter.emit (domain.js:448:20)
      at endReadableNT (_stream_readable.js:1129:12)
      at process._tickCallback (internal/process/next_tick.js:63:19)
  </code></pre>
  
  <p>I checked ios size requirements and saw that it was 4gb for the ipa. I'm not sure why I'm getting this error. Any help would be greatly appreciated.</p>