Alpha updated

[Brian Rice]

New images are bootstrapped and loaded into the alpha area, and I've  
updated the tarball and repository as well.

New changes to the core:
- Equality/hash defined on CompiledMethod
- concatenatedTimes: fixed
- printing code cleanups
- #selector no longer is an adverb (to fix later)
- "Signature defineAs: method" and Signature arity were added
- a bug in roleReader was cleared up (fixing senders/implementations)
- cloneSettingSlots:to: and cloneWithUpdates: was added which takes  
slot-array, values-array in the first case, and association array of  
those in the second.

--
-Brian
http://tunes.org/~water/brice.vcf