Fixed SIMFLEX citation.
outcomes.tex: Lines-of-code table for P2, P3, P3extra
TODO
outcomes.tex: Ben says: SLOC table must go! P4 text added, 8.5 pp. -> 8.75
codesizes.png: screen shot of the SLOC table for future reference.
TODO
intro.tex: Minor compression tweaks.
410.tex: Compress wording in Pebbles syscall table.
410.tex: Compression pass

* SMP-project description rewritten
* lots of \shortversion{}, especially in Limitations
* some "permanent" phrase shortening
Remember to run "make" BEFORE committing.
410.tex: "invoke vanish()" -> "exit" to avoid a forward ref.
410.tex: Squeeze pass over "Grading" section.
TODO
landslide.tex: A couple initial text squeezes.
outcomes.tex: Trivial drive-by text squeezings.
TODO
citations.bib: pintos -> {Pintos}
landslide.tex: Squeezes that I hope Ben will sign off on.
outcomes.tex: This pass clarified (I hope), but produced no actual vertical shrinkage.
outcomes.tex: Mention here that volunteers were "top students", not random.
conclusion.tex: Squeeze pass.  Result of all squeezing: 8.6 pp. -> 8.2 pp.