Reviewed-by: kvn, twisti

Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never

Summary: Update copyright for files that have been modified starting July 2008 to Dec 2008
Reviewed-by: katleman, ohair, tbell

Summary: post-register allocation pass that drives block layout by edge frequencies
Reviewed-by: never, kvn