new docker compose file for elasticsearch and kibana

docker/composers/elk.yml

+elk:
+  image: sebp/elk
+  ports:
+    - "5601:5601"
+    - "9200:9200"
+fluentd-es:
+  image: openfirmware/fluentd-elasticsearch
+  ports:
+    - "24224:24224"
+    - "8888:8888"
+  links: 
+    - elk:elasticsearch