[gimp] Added Julien Hardelin as documentation author

[Marco Ciampa <marcoc src gnome org>]

commit 35f1bfc1f788b37df6eaf733af1e7e7cd93da6d4
Author: Marco Ciampa <ciampix posteo net>
Date:   Thu May 3 01:32:47 2018 +0200

    Added Julien Hardelin as documentation author

 AUTHORS     |    1 +
 authors.xml |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/AUTHORS b/AUTHORS
index 75dcfc6..fd8aa0d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -103,6 +103,7 @@ The following people have contributed code to GIMP:
  Pavel Grinfeld
  Dov Grobgeld
  Michael Hammel
+ Julien Hardelin
  Tim Harder
  Marcus Heese
  Robert Helgesson
diff --git a/authors.xml b/authors.xml
index b483d93..040dda8 100644
--- a/authors.xml
+++ b/authors.xml
@@ -113,7 +113,7 @@
   <contributor role="author" last-active="2.4">Dov Grobgeld</contributor>
   <contributor role="artist" last-active="2.10">Philipp Haegi</contributor>
   <contributor role="author documenter" last-active="2.4">Michael Hammel</contributor>
-  <contributor role="documenter" last-active="2.6">Julien Hardelin</contributor>
+  <contributor role="author documenter" last-active="2.10">Julien Hardelin</contributor>
   <contributor role="artist" last-active="2.10">Aryeom Han</contributor>
   <contributor role="author" last-active="2.8">Tim Harder</contributor>
   <contributor role="author" last-active="2.6">Marcus Heese</contributor>