preparing for 7.3.17 release

docs/changelog/7.x.x.txt

@@ -6,6 +6,7 @@
  - fix: Welcome messages shouldn't be added to inbox as pending.
  - fix: Always use correct format for Message-Id headers in mail.
  - fix: Don't reject built in groups when changing permissions.
+ - fix: raw message in post is an array instead of a scalar
  
 
 7.3.16 

docs/gotcha.txt

@@ -20,6 +20,10 @@ save you many hours of grief.
    isThreadLocked.  No template variables, field names or database
    columns were changed.
 
+ * The create.sql script for 7.3.15 was released with 7.3.16. While
+   upgrading to 7.3.17 you'll notice it also processing the 7.3.15-
+   7.3.16 upgrade. This is to be expected.
+
 7.3.15
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