More meta info fixes.

lib/pleroma/web/twitter_api/controllers/util_controller.ex

@@ -7,12 +7,39 @@ defmodule Pleroma.Web.TwitterAPI.UtilController do
   end
 
   def config(conn, _params) do
-    json(conn, %{
-          site: %{
-            name: Web.base_url,
-            server: Web.base_url,
-            textlimit: 5000
-          }
-    })
+    case get_format(conn) do
+      "xml" ->
+        response = """
+        <config>
+          <site>
+            <name>#{Web.base_url}</name>
+            <site>#{Web.base_url}</site>
+            <textlimit>5000</textlimit>
+          </site>
+        </config>
+        """
+        conn
+        |> put_resp_content_type("application/xml")
+        |> send_resp(200, response)
+      _ ->
+        json(conn, %{
+              site: %{
+                name: Web.base_url,
+                server: Web.base_url,
+                textlimit: 5000
+              }
+             })
+    end
+  end
+
+  def version(conn, _params) do
+    case get_format(conn) do
+      "xml" ->
+        response = "<version>Pleroma Dev</version>"
+        conn
+        |> put_resp_content_type("application/xml")
+        |> send_resp(200, response)
+      _ -> json(conn, "Pleroma Dev")
+    end
   end
 end