Move to a fix "random" source for the perf test. Makes changes comprable and removes wait time on system randomness generators or potentially work-intensive PRNG algorithms.
Clobber conditional logging that is showing up in the traces. ~3% faster.
Seems we still need the null checking in Expression::addVariable. Need to root out why. Refs #52
Merge remote-tracking branch 'upstream/master'
Merge upstream
Update bin/c.js