Added timestamp to console log note
Only loop the animation, not the setup
Updated build
Added tock.js class
Rebuilt animation time handlers using tock.js

The setTimeout method wasn't very reliable on the looping animation
after it had run for awhile (8+ loops). The browser can be affected by
the computer's CPU, which causes latency in asychonous timers, so
tock.js queries the system clock on each loop, which is more reliable
for an animation like this one.
Added tock plugin to build script
Updated build