ConfigLoader loads unquoted numbers as objects

[alexsegura]

When using ConfigLoader to load Symfony configuration in JavaScript, unquoted integers get parsed as objects.

For example, when there is the following in parameters.yml:

app.dispatch_port: 8009
app.tracking_port: 8010
app.order_tracking_port: 8011
app.restaurant_panel_port: 8013

The resulting configuration is like this:

parameters: {
  "app.dispatch_port": {},
  "app.tracking_port": {},
  "app.order_tracking_port": {},
  "app.restaurant_panel_port": {},
}

Right now, it works because we have quoted numbers in parameters.yml.dist

See also #20

[alexsegura]

Not relevant anymore since we use env vars