adapted postgres config

dockerfiles/Dockerfile.psql

-FROM postgres:9.6.3
+FROM postgres:9.6
 LABEL maintainer="Alexander König <Alexander.Koenig@eurac.edu>"
 
 # install git
@@ -9,6 +9,9 @@ RUN apt-get update &&\
 RUN mkdir -p /docker-entrypoint-initdb.d
 COPY commul-customization/init-dspace-dbs.sh /docker-entrypoint-initdb.d/
 
+# copy over modified config file
+COPY commul-customization/postgresql.conf  /var/lib/postgresql/data/pgdata/
+
 # copy utilities generating script
 RUN mkdir /tmp/sql/
 COPY adapt_utilities_sql.sh /tmp/sql/