group functions by topic; update docs
group functions by topic; update docs

DAB0mB/velocity,meteor-velocity/velocity,markandrewj/velocity-test-runner,DAB0mB/velocity,DAB0mB/velocity,pbastowski/velocity,markandrewj/velocity-test-runner,pbastowski/velocity,markandrewj/velocity-test-runner,meteor-velocity/velocity,pbastowski/velocity,meteor-velocity/velocity