[gvfs] Update NEWS for 1.35.91 release

[Ondrej Holy <oholy src gnome org>]

commit 0dc516e955bc5cb4dc97a9c01f6a15e4303e509b
Author: Ondrej Holy <oholy redhat com>
Date:   Mon Feb 19 16:22:07 2018 +0100

    Update NEWS for 1.35.91 release

 NEWS |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index a9dd1ee..aa07f31 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,11 @@
+Major changes in 1.35.91
+========================
+* mtp: Prevent crashes if device is unplugged during mount operation
+* daemon: Fix admin backend spawning on some systems
+* google: Return error properly when trying to replace native files
+* Several smaller bugfixes
+* Translation updates
+
 Major changes in 1.35.90
 ========================
 * build: Several FreeBSD related fixes