Add scripts directory with script/boomtown.coffee for testing errors
Always log errors received by robot emitter. That means that the shell adapter doesn't need to do that itself anymore
Remove hubot boom throw documentation line, since it's not a special case
Add default Procfile
Fix boomError
Add an error handler for testing
Reply with stack too
Merge branch 'master' into fix-error-logging
Revert "Add default Procfile"

This reverts commit 045de148e7c9c2738a8c44224073be8e5a626462.
Don't actually keep this in hubot
Merge pull request #748 from github/fix-error-logging

Fix error logging