Fixed JSON description of system hook

Fixed JSON description of system hook to accurately describe what is actually being sent.

app/views/admin/hooks/_data_ex.html.erb

@@ -28,8 +28,8 @@
      "project_id": 74, 
    "project_name": "StoreCloud",
    "project_path": "storecloud", 
-    "owner_email": "johnsmith@gmail.com",
-     "owner_name": "John Smith",
+    "user_email": "johnsmith@gmail.com",
+     "user_name": "John Smith",
 }
 4. Team Member Removed:
@@ -40,8 +40,8 @@
      "project_id": 74, 
    "project_name": "StoreCloud",
    "project_path": "storecloud", 
-    "owner_email": "johnsmith@gmail.com",
-     "owner_name": "John Smith",
+    "user_email": "johnsmith@gmail.com",
+     "user_name": "John Smith",
 }
 5. User created: