Refactored the code to only have a single ReplyMessenger in the Activity.
Merge branch 'master' of https://github.com/douglascraigschmidt/POSA-14

# By douglascraigschmidt
# Via douglascraigschmidt
* 'master' of https://github.com/douglascraigschmidt/POSA-14:
  Refactored the code to only have a single ReplyMessenger in the Activity.