Update wording, subject on future_initial.

Add more clarity to the first initial message tenants receive so that
it's very clear it's simply been reserved.

Change-Id: Id1ccd78222c0274aa304521a195f7fcf390caad9

quads/templates/future_initial_message

@@ -1,9 +1,9 @@
 
 Greetings Citizen,
 
-You've been allocated a new environment!  The environment is not
-yet ready for use but you are being notified ahead of time that
-it is being prepared.
+You've been allocated a new future environment!  The environment
+is not yet ready for use but you are being notified ahead of time
+that it is being prepared.
 
 {{ cloud_info }}
 
@@ -13,6 +13,13 @@ passed automated validation it will be released to you.
 You'll receive another email with environment-specific
 information and additional system details when it's ready.
 
+Before this happens a future schedule will be entered and
+communicated to you via your service ticket/request.
+
+Afterwards, when the time comes a series of automated tests and
+validation phases will occur to make sure your systems/network
+are in their final, desired state before being ready to use.
+
 For additional information regarding the Scale Lab usage
 please see the following documentation:
 

quads/tools/notify.py

@@ -98,7 +98,7 @@ def create_future_initial_message(real_owner, cloud_info, cc):
         cloud_info=cloud_info,
         wp_wiki=conf["wp_wiki"],
     )
-    postman = Postman("New QUADS Assignment Allocated", real_owner, cc_users, content)
+    postman = Postman("New QUADS Assignment Defined for the Future", real_owner, cc_users, content)
     postman.send_email()