[gtksourceview] Release 3.17.3

[Sébastien Wilmet <swilmet src gnome org>]

commit 6159d8ab9b7a194462796243232d47f2bf7ce0ee
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Jun 22 20:55:02 2015 +0200

    Release 3.17.3

 NEWS |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 752dd75..f244f0b 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+News in 3.17.3
+--------------
+* Add a few more functions to GtkSourceFile
+* Add the "smart-backspace" property
+* Misc bug fixes
+* Translation updates
+
 News in 3.17.2
 --------------
 * New widget: GtkSourceMap