upgraded elasticsearch version

Author: musketyr

Dockerfile

@@ -1,4 +1,4 @@
-FROM elasticsearch:2.1.2
+FROM elasticsearch:2.3.5
 
 MAINTAINER Vladimir Orany <vladimir@orany.cz>
 
@@ -12,4 +12,4 @@ RUN set -x \
 
 EXPOSE 9300 9200
 
-CMD ["elasticsearch", "-Des.cluster.name=metadata", "-Des.network.host${METADATA_ES_HOST:-0.0.0.0}", "-Des.threadpool.bulk.queue_size=20000", "-Des.action.auto_create_index=false", "-Des.index.mapper.dynamic=false"]
+CMD ["elasticsearch", "-Des.cluster.name=metadata", "-Des.network.host=${METADATA_ES_HOST:-0.0.0.0}", "-Des.threadpool.bulk.queue_size=20000", "-Des.action.auto_create_index=false", "-Des.index.mapper.dynamic=false"]