Phobos licensing

[Walter Bright]

Bill Baxter wrote:
> But it's jumping the gun because I suspect Matthew Wilson might be 
> willing to change the license.  At least I'm guessing so, because 
> std.openrj is also by him, and it has a reasonable license.

If someone wants to take the lead on this, and either ask Matthew to 
change the license, or replace those modules, I'll be happy with either. 
As it stands, none of them are lynchpins of Phobos, and can be simply 
dropped without affecting the rest.