remove sucker punch

sucker punch cannot be used in Resque jobs or other processes that are
not long-lived.  The only way to disable it is to turn on "testing mode"
for sucker punch, which is not ideal.

For now, leaving the question of how to send these messages in the
background unanswered.
documentation
Merge pull request #4 from stitchfix/remove-sucker_punch

Remove sucker punch
bump version
update the gems
Merge pull request #7 from stitchfix/upgrade_gems

update the gems
fix rake task file path
Merge pull request #8 from stitchfix/chore/fix-rake-task-file-path-in-readme

fix rake task file path
change gemfile setup now that it's released
s/message_handler/pwwka where appropriate
fix small bug in testhandler and improve it

* Docs about how to use it
* Have it bind to *all* messages, not just `*.*`
* Deprecate the `get_topic_blah_blah` for a more streamlined API
Add message queuing for batch email sending
Merge pull request #9 from stitchfix/feature/expand-and-document-test-handler

fix small bug in testhandler and improve it
bump version
basic delayed messages
Merge remote-tracking branch 'origin/master' into delayed_delivery
Merge remote-tracking branch 'origin/master' into queue_messages_for_batch_delivery
stop creating new instances
do it properly this time
Merge pull request #10 from stitchfix/queue_messages_for_batch_delivery

Add message queuing for batch email sending