implement Task #155572

- add spring.mail.subject.prefix property
  - default to empty string
  - [CRSS 2.0 - Trial Operation] for top

crss-admin/crss-admin-top.yml

@@ -13,6 +13,8 @@ spring:
         smtp:
           auth: true
           starttls.enable: true
+    subject:
+        prefix: "[CRSS 2.0 - Trial Operation]"
 crss:
   ldap:
     protocol: LDAPS
@@ -25,4 +27,4 @@ crss:
     username-field: "userPrincipalName"
     domain: "wesmsys.local"
     embedded: false
-    passwordOpEnabled: true
+    passwordOpEnabled: true

crss-admin/crss-admin.yml

@@ -11,6 +11,9 @@ spring:
   redis:
     host: redis.marathon.l4lb.thisdcos.directory
     database: 1
+  mail:
+    subject:
+      prefix: ""
 feign:
   hystrix:
     enabled: false