AJAX data behavior and accept header http

[Kikobeats]

Hello!

I experimented with QuoJS and jQuery with the same client and server environment. Server use express 3.x and I found outstanding different in the way that jQuery and QuoJS send the data.

Ajax settings:

dataType    : "json"
contentType : "application/x-www-form-urlencoded"

results sending an object in the request:

Another difference is the headers. Both use the most typical headers but jQuery added two headers more:

QuoJS

jQuery

I do not think the two issues are related.
Maybe need more tests for try to determinate if is a bug or a isolated case.

Relationated with #75