[gvfs] Update NEWS for 1.29.4 release

[Ondrej Holy <oholy src gnome org>]

commit 8baec79ab9cb2cb86095b071f3a40f7f6a751ef6
Author: Ondrej Holy <oholy redhat com>
Date:   Mon Jul 18 11:31:11 2016 +0200

    Update NEWS for 1.29.4 release

 NEWS |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index da03068..48d3b40 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,12 @@
+Major changes in 1.29.4
+=======================
+* Introduce an admin gvfs backend based on polkit
+* gvfs-open: Fix spawning of applications with dashses in their app IDs
+* daemon: Fix crashes caused by NULL certificates
+* daemon: Set G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE attribute
+* Several smaller bugfixes and improvements
+* Translation updates
+
 Major changes in 1.29.3
 =======================
 * afc: Many improvements and fixes for iOS support