fix call to setOutput

src/main/java/org/cobbzilla/util/http/HttpUtil.java

@@ -94,7 +94,7 @@ public class HttpUtil {
         urlConnection.setRequestMethod(method);
         if (headers != null) addHeaders(urlConnection, headers);
         if (headers2 != null) addHeaders(urlConnection, headers2);
-        urlConnection.setDoInput(true);
+        urlConnection.setDoOutput(true);
         final OutputStream upload = urlConnection.getOutputStream();
         IOUtils.copyLarge(data, upload);
         return urlConnection.getInputStream();