Replaces the json with a generic url

Dockerfile

@@ -5,9 +5,8 @@ MAINTAINER Stian Larsen <lonixx@gmail.com>
 RUN apt-get -q update && \
 PLEXURL=$(curl -s https://tools.linuxserver.io/latest-plex.json| grep "ubuntu64" | cut -d '"' -f 4) && \
 apt-get install -qy dbus avahi-daemon wget && \
-wget -P /tmp "$PLEXURL" && \
-dpkg -i /tmp/plexmediaserver_*_amd64.deb && \
-rm -f /tmp/plexmediaserver_*_amd64.deb && \
+curl -L 'https://plex.tv/downloads/latest/1?channel=8&build=linux-ubuntu-x86_64&distro=ubuntu' -o /tmp/plexmediaserver.deb
+dpkg -i /tmp/plexmediaserver.deb && rm -f /tmp/plexmediaserver.deb && \
 apt-get clean && \
 rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*