Don't drop query params inlined in the URL

When navigating to a URL like `/foo?nico=1`, the `nico` query param is dropped. 

AHC in nicely handeling that : https://github.com/AsyncHttpClient/async-http-client/blob/master/api/src/main/java/com/ning/http/client/RequestBuilderBase.java#L385
But, when calling `requestBuilder.setQueryParameters`, we were loosing these parameters.