How to Disable "You Are Opening The Application For The First Time?"

I run a small, low power FM community radio station in Vermont. We are a non-profit, and have for years run our recording and automation system through a combination of iTunes Playlists, Automator Scripts, and Calendar Actions. Basically, shows are recorded and then replayed at a later time by using a Calendar Alarm which activates an Automator Script which then plays the appropriate MP3 of the show.

We upgraded to 10.10 last night. Ever since then, whenever one of our Calendar Alarms goes off, the script does not fire. Instead, we get the "You Are Opening The Application For The First Time" dialogue box for approval. We tried working around this by opening each and every script and pressing the "OK" button, but this keeps on happening the first time the script is called for via the Calendar Alarm.

We need to disable this feature of 10.10, but nothing we have tried so far has fixed it. It appears to us that this is controlled via LaunchServices Quarantine. We have tried to disable this by using the following commands, to no effect:

defaults write com.apple.LaunchServices LSQuarantine -bool false

defaults write com.apple.LaunchServices LSQuarantine -bool NO

Both have been run with normal privileges and with sudo. Restarts have occurred after we tried each one.

I hope there is some way to disable this, as this feature effectively breaks our entire system.

Thank you for your help.