[gimp] NEWS: update various notable improvements.

[Jehan Pagès <jehanp src gnome org>]

commit 4f871cb57d6595776b1f5901e5ec7ebdae7f2c42
Author: Jehan <jehan girinstud io>
Date:   Sat Oct 28 22:33:58 2017 +0200

    NEWS: update various notable improvements.
    
    We should keep the list as updated as possible! :-)

 NEWS |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 656e711..72c59aa 100644
--- a/NEWS
+++ b/NEWS
@@ -26,6 +26,8 @@ Core:
     in your GUI language. This will be proposed by default when a manual
     is not installed for the GUI language (alongside the possibility to
     read online) and the choice can be edited in preferences.
+  - The statusbar now blinks on warnings and errors.
+  - Highlight upper/lower halves of spinscales while hovering.
 
 Tools:
 
@@ -56,6 +58,8 @@ File formats:
     - Fix potential group-layer naming conflict during loading.
     - Fix missing some attributes loading empty layers.
     - Improve layer opacity loading/saving.
+    - Fix active layer selection upon loading.
+    - Load and save layer group expanded state.
 
 Filters:
 
@@ -80,6 +84,7 @@ Building:
   - Require LittleCMS >= 2.8.
   - Initial docker-based build environment for GIMP now available.
   - Warn against use of GCC 7.2 which has a bug breaking GIMP.
+  - An official flatpak stable package is now available on flathub.
 
 Contributors: