[gimp] desktop: preparing a new <release> tag for 2.10.0 RC2.

[Jehan Pagès <jehanp src gnome org>]

commit 0a1dd3771922af526ac9cb709c28d0d7d410303e
Author: Jehan <jehan girinstud io>
Date:   Wed Apr 11 01:12:19 2018 +0200

    desktop: preparing a new <release> tag for 2.10.0 RC2.

 desktop/org.gimp.GIMP.appdata.xml.in.in |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/desktop/org.gimp.GIMP.appdata.xml.in.in b/desktop/org.gimp.GIMP.appdata.xml.in.in
index 7990cd1..95fe866 100644
--- a/desktop/org.gimp.GIMP.appdata.xml.in.in
+++ b/desktop/org.gimp.GIMP.appdata.xml.in.in
@@ -125,6 +125,32 @@
       </description>
     </release>
 
+    <release version="2.10.0-rc2" date="2018-04-14" type="development">
+      <description>
+        <_p>
+        In this second release candidate before GIMP 2.10.0, while
+        debugging is still a prime target, a new focus has been put on
+        speed and optimization in order to provide a smoother painting
+        experience. Bigger changes are:
+        </_p>
+        <ul>
+          <_li>Major core optimizations for painting and display,
+          including parallelized painting code.</_li>
+          <_li>Symmetries are now preserved in XCF files (saved as image
+          parasites).</_li>
+          <_li>Light and Dark themes rewritten from scratch to get rid
+          of various usability issues</_li>
+          <_li> New GimpToolGyroscope on-canvas control, currently used
+          for the Panorama Projection filter. The widget provides
+          on-canvas interaction for 3D rotation (yaw, pitch, roll).</_li>
+          <_li>Plug-ins debugging improved to output stack traces from
+          plug-ins with --stack-trace-mode command line option not only
+          on receiving signals but also when "fatal-warnings" debug key
+          is set.</_li>
+        </ul>
+        <_p>For more information, see https://www.gimp.org/news/2018/04/14/gimp-2-10-rc2-released/</_p>
+      </description>
+    </release>
     <release version="2.10.0-rc1" date="2018-03-26" type="development">
       <description>
         <_p>