Extract cokefile timing helper to separate file
Streamline cokefile compilation

normalize naming a bit
Use new `sand` features for AOP goodness
Shorten timing names for less redundancy
Show timestamp after messages, not before
Remove profile task
Use cjsify's new internal cache mechanism

It leaks the internals of cjsify more than I'd like, but at least it
works.

Need to have vim stop sending so many superfluous change events now...