Add a /changes option to include detailed account info

Change-Id: I793e97762231372f223b069cff26c291ad767309
diff --git a/Documentation/rest-api-changes.txt b/Documentation/rest-api-changes.txt
index 27f579d..82f69fa 100644
--- a/Documentation/rest-api-changes.txt
+++ b/Documentation/rest-api-changes.txt
@@ -152,6 +152,9 @@
   `CURRENT_REVISION` was requested the only that commit's
   modified files will be output.
 
+* `DETAILED_ACCOUNTS`: include `_account_id` and `email` fields when
+  referencing accounts.
+
 ----
   GET /changes/?q=97&o=CURRENT_REVISION&o=CURRENT_COMMIT&o=CURRENT_FILES HTTP/1.0