Source control for all dmd source

[Jason House]

Over in D.anounce, the LDC devs said they would have an easier time upgrading to newer dmd (fe) versions if the source was in source control. Even if Walter is the only one with write access, it's still be helpful. It's helpful for more than just the LDC folks; that's just the most recent example.

How about it Walter? IIRC, Andrei has been encouraging you to do  this for awhile now.