Handle no kippt setup

re-require 'net/http', heroku seems to need it.
013-04-28T21:35:45+00:00 app[web.1]: ActionView::Template::Error (uninitialized constant Net::HTTP):

And handle no kippt being configured locally
initialize': No such file or directory - /Users/despo/code/rglondon/railsgirls-london/config/kippt.yml (Errno::ENOENT)