R5RS said almost nothing about character sets.
R6RS specified full Unicode. Do we specify a
character set, or limit the options in any way?
For WG1, i would suggest that under-specification is better than over-specification. While Unicode is amazingly general, it does miss on some issues - so in general I would think silence is better on this for WG1 Scheme
The WG voted to adopt UnicodeCowan.
Coordinate this with #24 and #26.