XF 1.3 External License File

I'd like to put the core XenForo release in my own version control to make deploying updates easier. I know that each download is tied to a license of some sort. Is it possible to distill the license information to a file outside of the core code? Ideally I'd be able to use the same repo to push out updates to the handful of sites that I manage each with their own XenForo license file.