Add ability to swap between arbitrary animations.

Right now, we are just swapping between headTurn and
the shine animations.

The code now swaps in the static image between each
animation and waits for the newest images to be loaded
before trying to resize and then animate them.

Some of the waiting logic was trimmed down. We no longer
create a fake image and wait for it to download, we simply
use the existing imagesLoaded library. Also one full
setTimeout was removed as being unneeded, but the first one
(between imagesLoaded saying the images are ready and
actually displaying the images) was made slightly longer
to compensate. Over all, though, users wait less time
between animations now.
Update biologica to remove "Metallic" from colors
Increase buffer before swapping images a little
Fix folder case bug.

Forgot that local server is case-insensitive but
remote server isn't...
Prevent queueing up new animation before old one started
Show trait animation first
No need for quite such a large buffer
Don't error if world refs nonexistant town
Switch to baseline world if using baseline route

Routes starting with ?task=baseline/ switch to baseline
mode as usual. Now this also causes the towns to be
loaded from the "baseline" world instead of the "game"
world.

Update the local version of api/game to the latest
version from dev, which includes a baseline world with
four out of six towns authored.
Add bracket chromosome labels
Show only chromo labels for selected parents
Don't rm points for enabling meiosis, keeping offspring
Prevent task rep from being < 0
Add ability to show chained tutorial messages

Passing an array of messages will show the next
message after each OK button, and finally perform the
hideAction after the last message.
Show chained meiosis tutorial on task 1/3
Add remaining meiosis tutorial messages
Fix cases of calling set on destroyed drake view
Go straight to obstacle course at end of task
On obstacle courses, get rep earned from obs controller
Refactor rep dialog calculations into controller