Use v0.3 for datahub docker images as part of quickstart

Author: Kerem Sahin

docker/quickstart/docker-compose.yml

@@ -133,7 +133,7 @@ services:
       - ELASTICSEARCH_PORT=9200
 
   datahub-gms:
-    image: keremsahin/datahub-gms:latest
+    image: keremsahin/datahub-gms:release-0.3.0
     hostname: datahub-gms
     container_name: datahub-gms
     ports:
@@ -162,7 +162,7 @@ services:
                                    java -jar jetty-runner-9.4.20.v20190813.jar gms.war'"
 
   datahub-frontend:
-    image: keremsahin/datahub-frontend:latest
+    image: keremsahin/datahub-frontend:release-0.3.0
     hostname: datahub-frontend
     container_name: datahub-frontend
     ports:
@@ -177,7 +177,7 @@ services:
       - datahub-gms
 
   datahub-mae-consumer:
-    image: keremsahin/datahub-mae-consumer:latest
+    image: keremsahin/datahub-mae-consumer:release-0.3.0
     hostname: datahub-mae-consumer
     container_name: datahub-mae-consumer
     environment:
@@ -196,7 +196,7 @@ services:
               echo kafka-setup done! && ./mae-consumer-job/bin/mae-consumer-job'"
 
   datahub-mce-consumer:
-    image: keremsahin/datahub-mce-consumer:latest
+    image: keremsahin/datahub-mce-consumer:release-0.3.0
     hostname: datahub-mce-consumer
     container_name: datahub-mce-consumer
     environment: