Search through an entire project, not just a repository

Keyboard shortcuts, look, speed.

I'd like to be able to search an entire project, not just a repository. Now, I realize I can do this on the file-system without trouble, but I think this feature would be a good addition to Stash. I spoke with Sven Peters, and I understand that historical searching is likely out of the question (I think we've learned that lesson already--it's just too resource intensive).