Fixed move method and animation tests to draw lines based on length and angle instead of endpoint.
Design for Multiple Choice Radio Questions
broken version for making subscripts
Added helper splitOnNumbers to sketch and tests for it
Merge branch 'mlippert/widget-refactor'

Conflicts:
	js/widget-sketch.js
Updated test that draws a molecule

but-2-ene
Merge branch 'upstream/master'
Fixed bug that caused single-letter text to be duplicated in sketches.
Merge pull request #28 from jvish/review

Review
Added animation tests to the table of contents.
Merge pull request #29 from jvish/review

Added animation tests to the table of contents.