[R6RS] SRFIs for R6RS

[dyb at cs.indiana.edu]

> [note: syntax-case and records have to go through a round of  
> discussion before being submitted but we might as well write them up  
> as SRFIs to start with.]

I understand this comment wrt records, but why syntax-case?  We voted in
Boston to put syntax-case into R6RS, and in any case, I think there are
fewer issues under contention than with the some of the other proposed
SRFIs.

Kent