pluginaweek/state_machine — pull request #200 by adimichele (2012-07-25 19:26:41+00:00)
Title: Removed 'invalid' translation from locale specification 

Did this in order to avoid overriding user settings for errors.attributes.[name].invalid and errors.messages.invalid as these have a lower priority. Plus, "invalid" already has a default setting (although I don't know how many years ago this made it into the default locale settings).