Added chown -R www-data:www-data for /var/lib/nginx (fixes dockerfile#4)

Author: pilwon

Dockerfile

@@ -12,7 +12,8 @@ RUN \
  add-apt-repository -y ppa:nginx/stable && \
  apt-get update && \
  apt-get install -y nginx && \
- echo "\ndaemon off;" >> /etc/nginx/nginx.conf
+ echo "\ndaemon off;" >> /etc/nginx/nginx.conf && \
+ chown -R www-data:www-data /var/lib/nginx
 
 # Define mountable directories.
 VOLUME ["/data", "/etc/nginx/sites-enabled", "/var/log/nginx"]