Merge branch 'hotfix/1.0.3' into develop

# Conflicts:
#	config/cable.yml
#	docs/development/environment-setup/docker.md

.env.example

@@ -1,6 +1,12 @@
-REDIS_URL=redis://redis:6379
 SECRET_KEY_BASE=
 
+#redis config
+REDIS_URL=redis://redis:6379
+# If you are using docker-compose, set this variable's value to be any string,
+# which will be the password for the redis service running inside the docker-compose
+# to make it secure
+REDIS_PASSWORD=
+
 # Postgres Database config variables
 POSTGRES_HOST=postgres
 POSTGRES_USERNAME=postgres