Update changes with Docker changes and atribution.

Author: rouilj

CHANGES.txt

@@ -115,8 +115,9 @@ Features:
 - issue2551182 - Enhance configuration module to allow loading values
   from an external file. Secrets (passwords, secrets) can specify
   file using file:// or file:///. The first line of the file is used
-  as the secret. This allows committing config.ini to a VCS.
-
+  as the secret. This allows committing config.ini to a VCS. (John
+  Rouillard)
+- Added xapian indexer to Docker container. (John Rouillard)
 
 2021-07-13 2.1.0