After releasing the source code for both games a couple of days ago Raven studios have pulled the code from SourceForge last night. The reason behind the code being pulled is the inclusion of propriety code, namely Bink which is usually used for movie encoding. A former Raven employee stated.
If you copied the code straight out before last night (as I see in the OpenJK repository) instead of forking, you’ll need to remove the bink stuff and feelit libs to avoid legal issues. We had to struggle with Git last night to remove evidence of their existence,
It is expected that once all the propriety code has been removed, the game code will be made available again.