Merge branch 'post-process'

* post-process:
  rss2email/post_process/downcase.py: Move my test hook into Arun's directory
  post_process: add documentation and a prettify example
  Add configurable post-process hooks

Signed-off-by: W. Trevor King <wking@tremily.us>

diff --cc README
Simple merge

diff --cc rss2email/config.py
Simple merge

diff --cc rss2email/feed.py
Simple merge

diff --cc setup.py
Simple merge