I work with a small team of three people, and we use the collaborate service within Unity to share our progress. One of the folders we have inside our Unity project is an "OffGame" folder, which includes a tool I created specifically to help with the creation of certain assets. It's not actually supposed to be part of the game, but since I'm often making changes to it, I figured I'd include it in the Unity project. The Unity project temporarily makes use of certain files inside said OffGame folder, however, once the game is done, those files will be moved outside of that folder and integrated into the game proper.
Since that OffGame folder is not supposed to be part of the game and I only included it there to share it to my teammates over the collaborate service, I don't want it to be treated like a normal folder for the game. Specifically, I don't want Unity to create a bunch of useless meta files for each file in that folder, or to act like a stray .js file in there is part of the project. I actually got compile errors because Unity kept thinking it had to include all the .js files in that folder.
How can I make Unity ignore that folder?