[rfc] Windows symlink support

[Jamie Wilkinson]

This one time, at band camp, Denys Duchier wrote:
>Jamie Wilkinson <jaq at spacepants.org> writes:
>
>> Both these use cases are more easily solved using management agents like
>> puppet or cfengine; pushing symlinks out from your RCS is a terrible way to
>> handle this.  Usually one requires a tool run after the RCS push to modify
>> the final layout.  In such a case I've found it best to let this tool do the
>> linking itself, and leave the symlinks out of revision control.
>
>and you can still work the same way with bzr, but there is no reason to impose
>those limitations on the rest of us.

You snipped/ignored/didn't read the part where I explained why I didn't post
the original rant because of exactly this reason.