Set the correct PATH for whenever cronjobs
The default path for cron is `/usr/bin:/bin` so it cannot find scripts in `/usr/local/bin` which is unfortunately where govuk_setenv lives. This change (as per https://gist.github.com/950975) sets PATH for whevener in schedule.rb
Merge pull request #151 from alphagov/fix-whenever-govuk-setenv-tasks

Set the correct PATH for whenever cronjobs