SERVE_STATIC_ASSETS=true should support public_html

[cheungpat]

Since #125, the public_html directory is not served when SERVE_STATIC_ASSETS is turned on. This should be supported to have feature parity with py-skygear.

[iam7seven7]

I realize this is why I can't serve static assets with public_html on my machine but works fine on skygeario. Thanks Rick for troubleshooting.

My workaround is to place assets in a subfolder in public_html, and declare static asset path:

skygearCloud.staticAsset("/client", () => {
  return path.resolve(__dirname, "./public_html/client");
});

This will only take effect on local machine. (skygearCloud.staticAsset is override on skygeario)