resurrecting Bud and Rebuild

[Frits van Bommel]

Walter Bright wrote:
> No paths at all will be allowed in the import string. They'll have to be 
> supplied via the -Jpath command line switch. It's probably more 
> conservative than necessary, but:
> 
> 1) introducing host system dependent path separators makes the source 
> code non-portable

Don't all systems in any amount of use these days accept '/'? (Yes, that 
includes Windows)

> 2) it gives the 'buildmaster' an easy way to find out and control what 
> files are imported
> 
> 3) I think it's best to err on the side of conservatism here

Well, at least it won't break any code if you later decide to allow paths...