[libgda/LIBGDA_5.2] Updated NEWS for 5.2.5 release

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit afe668efc94c02e54e42291055c97c113ebcd26a
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Sep 26 14:24:11 2018 -0500

    Updated NEWS for 5.2.5 release

 NEWS | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 8ad93fcbd..e9fa58227 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,7 @@
 
 libgda 5.2.5
-
+ - GdaConnection has removed the use of g_object_weak_*, improving
+   multi-threading behaviour
  - Updated SQLite to 3.8.11.1
  - Fix SQLCipher build by embedding source code for 3.4.2 version
  - Fix SQLCipher disabling