[gstreamermm] Gst::UriHandler: add missing enum, update docs.

[Marcin Kolny <mkolny src gnome org>]

commit 863fda99efde599b80913e08f5c1e5d2e1a59944
Author: Marcin Kolny <marcin kolny gmail com>
Date:   Sat Aug 27 13:08:19 2016 +0200

    Gst::UriHandler: add missing enum, update docs.

 gstreamer/src/urihandler.hg |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/gstreamer/src/urihandler.hg b/gstreamer/src/urihandler.hg
index 17fcd90..b20a317 100644
--- a/gstreamer/src/urihandler.hg
+++ b/gstreamer/src/urihandler.hg
@@ -1,6 +1,6 @@
 /* gstreamermm - a C++ wrapper for gstreamer
  *
- * Copyright 2008 The gstreamermm Development Team
+ * Copyright 2008-2016 The gstreamermm Development Team
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -30,6 +30,7 @@ namespace Gst
 class Element;
 
 _WRAP_ENUM(URIType, GstURIType)
+_WRAP_ENUM(URIError, GstURIError)
 
 /** An interface to ease URI handling in plugins.
  * The Gst::URIHandler is an interface that is implemented by Source and Sink
@@ -40,7 +41,7 @@ _WRAP_ENUM(URIType, GstURIType)
  *
  * Source and Sink plugins should implement this interface when possible.
  *
- * Last reviewed on 2005-11-09 (0.9.4)
+ * Last reviewed on 2016-08-27 (1.8.0)
  * @ingroup GstInterfaces
  */
 class URIHandler : public Glib::Interface
@@ -82,6 +83,9 @@ public:
    */
   virtual const gchar * const * get_protocols_vfunc() const;
 
+  /**
+   * Method to tell whether the element handles source or sink URI.
+   */
   virtual URIType get_type_vfunc();