[Powerlord]

The only issue I can see here now is that we no longer have separate repositories for each HL2SDK, plus the central and releases branch of MM:S and SourceMod are now just branches of each other.

This makes it trickier to switch between them unless we intentionally check out the same project multiple times, meaning we now have a much, much, much larger file size footprint to deal with.
Edit 2: Apparently it's possible to just check out a specific branch, but it takes extra time to do this from a non-command-line client.

Edit: Incidentally, git doesn't store revision number, how will this change how builds are numbered?