Do not download data when running

[frafra]

ckan-postgres-dev/docker-entrypoint-initdb.d/02_datastore_permissions.sh

Lines 6 to 13 in f8c1eca

	if [ $CKANVERSION == 'master' ]
	then
	wget https://raw.githubusercontent.com/ckan/ckan/dev-v$CKAN_VERSION/ckanext/datastore/set_permissions.sql \
	-O /tmp/set_permissions.sql
	else
	wget https://raw.githubusercontent.com/ckan/ckan/$CKAN_VERSION/ckanext/datastore/set_permissions.sql \
	-O /tmp/set_permissions.sql
	fi

Adding files should happen when building, not when running. How about using ADD in Dockerfile and avoid such if conditions to make things easier?

This would also make it possible to use non-alpine images, as regular Postgres images do not have wget, while the Alpine image has wget as an alias for busybox.