Add catch all server with default error page

Dockerfile

@@ -5,6 +5,9 @@ MAINTAINER Joachim Lusiardi
 RUN apt-get update; \
     apt-get install -y nginx;
 
+RUN mkdir /default
+ADD index.html /default/index.html
+RUN chmod -R 777 /default
 ADD nginx.conf /etc/nginx.conf
 ADD start.sh /start.sh
 RUN chmod +x /start.sh