Merge pull request ayufan-pine64#15 from pfeerick/pinebook-wallpaper

Changing the default wallpaper for MATE

Author: ayufan

package/root/usr/local/sbin/install_desktop.sh

@@ -90,6 +90,12 @@ fi
 
 # Desktop dependent post installation.
 case $DESKTOP in
+	mate)
+		# Change default wallpaper
+		dpkg-divert --divert /usr/share/backgrounds/ubuntu-mate-common/Ubuntu-Mate-Cold-stock.jpg --rename /usr/share/backgrounds/ubuntu-mate-common/Ubuntu-Mate-Cold.jpg
+		ln -s /usr/share/backgrounds/ubuntu-mate-pinebook/Pinebook-Wallpaper-6.jpg /usr/share/backgrounds/ubuntu-mate-common/Ubuntu-Mate-Cold.jpg
+		;;
+
 	i3|i3wm)
 		if [ ! -d /usr/share/slim/themes/pine64 ]; then
 			cp -ra /usr/share/slim/themes/default /usr/share/slim/themes/pine64