[jQuery] Jquery.param encoding wrong

[thibaultdelor]

Hello, I think that the param function doesn't work well, it doesn't
encode to the url format. For example :

    jQuery.param({test:"béton"})

return :

    test=b%C3%A9ton

while it has to return :

    test=b%E9ton

This problem is present in the form plugin, the ajax.submit function
use "param" and so it doesn't work well too.

Thanks!