Merge pull request AsyncHttpClient#267 from rubaiyan/master

Fix proxy authentication in ApacheAsyncHttpProvider

Author: jfarcand

providers/apache/src/main/java/com/ning/http/client/providers/apache/ApacheAsyncHttpProvider.java

@@ -345,7 +345,7 @@ private HttpMethodBase createMethod(HttpClient client, Request request) throws I
 
             if (proxyServer.getPrincipal() != null) {
                 Credentials defaultcreds = new UsernamePasswordCredentials(proxyServer.getPrincipal(), proxyServer.getPassword());
-                client.getState().setCredentials(new AuthScope(null, -1, AuthScope.ANY_REALM), defaultcreds);
+                client.getState().setProxyCredentials(new AuthScope(null, -1, AuthScope.ANY_REALM), defaultcreds);
             }
 
             ProxyHost proxyHost = proxyServer == null ? null : new ProxyHost(proxyServer.getHost(), proxyServer.getPort());