add JPAAS_CLUSTER to env which equals to JPAAS_APPLICATION.cluster
Merge pull request #48 from X-Plat/add_env_for_fc

Add env for fc
Merge pull request #49 from X-Plat/Feature/add_cluster_id_env

add JPAAS_CLUSTER to env which equals to JPAAS_APPLICATION.cluster
Merge branch 'x-plat_dev' into add_env_for_fc