Update base image to ubuntu 16.04 LTS and add tor support to it.

In order to keep the Dockerfile simple, needed opotions have been appended to package provided torrc file and the /etc/init.d/tor script is used to start tor. If further customisation is desired, a wrapper script should be created to have further control on the startup. This would allow things like specifying external (tor) proxies and disable tor startup in those situations.

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:14.04
+FROM ubuntu:16.04
 
 MAINTAINER Felix Imobersteg <felix@whatwedo.ch>
 
@@ -9,17 +9,20 @@ ENV HOME /root
 #Install ZeroNet
 RUN \
     apt-get update -y; \
-    apt-get -y install msgpack-python python-gevent python-pip python-dev; \
+    apt-get -y install msgpack-python python-gevent python-pip python-dev tor; \
     pip install msgpack-python --upgrade; \
     apt-get clean -y; \
-    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*; \
+    echo "ControlPort 9051" >> /etc/tor/torrc; \
+    echo "CookieAuthentication 1" >> /etc/tor/torrc
+    
 
 #Add Zeronet source
 ADD . /root
 VOLUME /root/data
 
 #Set upstart command
-CMD cd /root && python zeronet.py --ui_ip 0.0.0.0
+CMD cd /root && /etc/init.d/tor start && python zeronet.py --ui_ip 0.0.0.0
 
 #Expose ports
 EXPOSE 43110