Fix host header, close #906

Author: slandelle

src/main/java/com/ning/http/client/providers/netty/request/NettyRequestFactory.java

@@ -85,7 +85,7 @@ else if (proxyServer != null && !(useProxyConnect(uri) && config.isUseRelativeUR
     private String hostHeader(Request request, Uri uri) {
         String host = request.getVirtualHost() != null ? request.getVirtualHost() : uri.getHost();
         int port = uri.getPort();
-        return port == -1 || port == getDefaultPort(uri) ? host : host + ":" + port;
+        return port == -1 || port == getSchemeDefaultPort(uri.getScheme()) ? host : host + ":" + port;
     }
 
     public String firstRequestOnlyAuthorizationHeader(Request request, Uri uri, ProxyServer proxyServer, Realm realm) throws IOException {

src/main/java/com/ning/http/util/AsyncHttpProviderUtils.java

@@ -101,10 +101,14 @@ public final static boolean isSameHostAndProtocol(Uri uri1, Uri uri2) {
                 && getDefaultPort(uri1) == getDefaultPort(uri2);
     }
 
-    public final static int getDefaultPort(Uri uri) {
+    public static final int getSchemeDefaultPort(String scheme) {
+        return scheme.equals("http") || scheme.equals("ws") ? 80 : 443;
+    }
+
+    public static final int getDefaultPort(Uri uri) {
         int port = uri.getPort();
         if (port == -1)
-            port = uri.getScheme().equals("http") || uri.getScheme().equals("ws") ? 80 : 443;
+            port = getSchemeDefaultPort(uri.getScheme());
         return port;
     }