Updated SotL/L documents for Iteration 2

[Brian Goetz]

>> - VM magic to make boxing costs go away (and give ponies to all the children of the world)
> Is this really an option, considering the deadlines etc? If we by any chance could have fixnums, the world would be so much nicer...

No, not a realistic option in the timeframe we have, sadly.  Included 
for completeness and optimism only.