Removed need for gdebi

Dockerfile

@@ -4,7 +4,7 @@ MAINTAINER Stian Larsen <lonixx@gmail.com>
 # Install Plex
 RUN apt-get -q update && \
 PLEXURL=$(curl -s https://tools.linuxserver.io/latest-plex.json| grep "ubuntu64" | cut -d '"' -f 4) && \
-apt-get install -qy dbus gdebi-core avahi-daemon wget && \
+apt-get install -qy dbus avahi-daemon wget && \
 wget -P /tmp "$PLEXURL" && \
 gdebi -n /tmp/plexmediaserver_*_amd64.deb && \
 rm -f /tmp/plexmediaserver_*_amd64.deb && \

init/30_update_plex.sh

@@ -44,7 +44,7 @@ elif [[ "$VERSION" != "$INSTALLED" ]]; then
 	  last=$?
 	done
 	apt-get remove --purge -y plexmediaserver
-	gdebi -n /tmp/plexmediaserver_"${VERSION}"_amd64.deb
+	dpkg -i /tmp/plexmediaserver_"${VERSION}"_amd64.deb
 else
 	echo "No need to update!"
 fi