Updated button drawing for animation tests.
Merge branch 'upstream/master'

Conflicts resolved:
	animationTests.html
Merge branch 'upstream/master'
Updated exercise to use hotspots to make sketches clickable.
Merge branch 'upstream/master'
Merge pull request #58 from jvish/review

Review
tweaks for library prototype
object tag prototyping
Merge remote-tracking branch 'upstream/master' into seann
Merge pull request #59 from seannives/seann

Seann
cleaning up autonumbering styling
Object tag wrappers for Kantorowski rotation example

- separated two sliders, ee readout, and right column charts and sliders into three objects
- made html files that contain just the object code, js and css
added images and captioned images to library prototype
Fix legend calls and events in NeffPopPredictions
Object implementation of NeffPopulation graph example
further along with Neff, with Image, CaptionedImage, and LabelGroup.  Working as AMD load but not as compiled distribution.
Merge remote-tracking branch 'upstream/master' into seann
Merge pull request #60 from seannives/seann

Seann
fix class not being added to div for response
rename selectonequestion.js to multiplechoicequestion.js