[gnome-raw-thumbnailer] Update NEWS file

[Hubert Figuière <hub src gnome org>]

commit 7651fed2d3ea009a10bf2a37ec919b78e5e12dfd
Author: Hubert Figuière <hub figuiere net>
Date:   Sat Mar 8 22:29:32 2014 -0500

    Update NEWS file

 NEWS |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index ba0755c..071af35 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,7 @@
+- Downscale properly the thumbnail (Anton Keks)
+- Fix error missage when arguments are wrong (Anton Keks)
+- Remove deprecate code (Anton Keks)
+
 3.0.0
 
 - Remove gnome-vfs dependency