[dconf-editor] Add Davi in doap and in About dialog.

[Arnaud Bonatti <arnaudb src gnome org>]

commit 4075564b28bab08514823e31f5a46d536c4fb988
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Dec 12 00:45:37 2017 +0100

    Add Davi in doap and in About dialog.

 dconf-editor.doap        |    7 +++++++
 editor/dconf-editor.vala |    2 +-
 2 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/dconf-editor.doap b/dconf-editor.doap
index 4b2feff..86242c0 100644
--- a/dconf-editor.doap
+++ b/dconf-editor.doap
@@ -24,4 +24,11 @@
     </foaf:Person>
   </maintainer>
 
+  <developer>
+    <foaf:Person>
+      <foaf:name>Davi da Silva Böger</foaf:name>
+      <foaf:mbox rdf:resource="mailto:dsboger gmail com" />
+    </foaf:Person>
+  </developer>
+
 </Project>
diff --git a/editor/dconf-editor.vala b/editor/dconf-editor.vala
index 2fefbf5..668ec83 100644
--- a/editor/dconf-editor.vala
+++ b/editor/dconf-editor.vala
@@ -460,7 +460,7 @@ class ConfigurationEditor : Gtk.Application
                                "program-name", _("dconf Editor"),
                                "version", Config.VERSION,
                                "comments", _("A graphical viewer and editor of applications’ internal 
settings."),
-                               "copyright", _("Copyright \xc2\xa9 2010-2014 – Canonical Ltd\nCopyright 
\xc2\xa9 2015-2017 – Arnaud Bonatti"),
+                               "copyright", _("Copyright \xc2\xa9 2010-2014 – Canonical Ltd\nCopyright 
\xc2\xa9 2015-2018 – Arnaud Bonatti\nCopyright \xc2\xa9 2017-2018 – Davi da Silva Böger"),
                                "license-type", Gtk.License.GPL_3_0,
                                "wrap-license", true,
                                "authors", authors,