WSResponse does not show contentType

Possible encoding bug from 

https://stackoverflow.com/questions/26409801/play-framework-ning-ws-api-encoding-issue-with-html-pages

So, looking at the HTTP header from the site, it is:

    HTTP/1.1 200 OK
    Content-Type: text/html
    X-UA-Compatible: IE=edge
    P3P: policyref="http://www.walla.co.il/w3c/p3p.xml", CP="NOI DSP COR NID CURa TAIa OUR IND UNI COM NAV"
    Content-Encoding: gzip
    Vary: Accept-Encoding
    Date: Thu, 16 Oct 2014 18:28:21 GMT
    Content-Length: 16958
    Connection: keep-alive

The header is 

    <html lang="he-IL" xml:lang="he-IL">
    	<head>
    		<meta charset="UTF-8" />


As the text says "[only one of these elements is required to set the character set to UTF-8][1]".

Looking at the [HTML W3 Validator](http://validator.w3.org/) service and entering the URL, it is detected as UTF-8.  So, my guess is that it's Curl doing some additional charset detection there.

However, even if the source is wrong, there should be a way to call response.contentType, and there isn't.  So filing this bug.

https://groups.google.com/d/topic/asynchttpclient/eY5uevka6Rg/discussion

  [1]: http://oli.jp/2009/html5-charset/