Moved again Dockerfile to docker subdirectory

Dockerfile

@@ -1,35 +0,0 @@
-# Base image : latest stable Debian 
-FROM debian:latest
-
-# Install needed packages
-RUN apt-get update && apt-get install -yq \
-	default-jdk \
-	ant
-	
-# Clean apt cache
-RUN apt-get clean
-	
-# copy context : should be a YaCy git repository (remote or locally cloned)
-# context can also be obtained from extracted sources archive, but version number will be default to 1.83/9000 when building
-COPY ./ /opt/yacy_search_server/
-
-# trace content of copied directory
-RUN ls -la /opt/yacy_search_server
-
-# set current working dir to extracted sources directory
-WORKDIR /opt/yacy_search_server
-	
-# Compile with ant
-RUN ant compile
-
-# clean .git directory useless now
-RUN rm -rf .git
-
-# Expose port 8090
-EXPOSE 8090
-
-# Set data volume : can be used to persist yacy data and configuration
-VOLUME ["/opt/yacy_search_server/DATA"]
-
-# Start yacy ind debug mode (-d) to display console logs and to wait for yacy process
-CMD sh /opt/yacy_search_server/startYACY.sh -d