[gvfs] Update news for 1.21.4 release

[Ondrej Holy <oholy src gnome org>]

commit 9c576602e1d3bbeb0a045dbc26bcf7253a3c0602
Author: Ondrej Holy <oholy redhat com>
Date:   Fri Jul 18 20:03:13 2014 +0200

    Update news for 1.21.4 release

 NEWS |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 71fcce3..20003fc 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,11 @@
+Major changes in 1.21.4
+========================
+* afp: Fix hangs while enumerating large directories
+* afp: Performance improvement
+* dav: Fix mounting multiple shares on the same host with different paths
+* Several smaller bugfixes
+* Translation updates
+
 Major changes in 1.21.3
 =======================
 * afc: Implement standard::allocated-size