Updated sketch tests.
Merge branch 'upstream/master'
activitymanager and interactives library prototype
Merge remote-tracking branch 'upstream/master' into seann
Merge pull request #49 from seannives/seann

Seann
Merge pull request #45 from jvish/review

Updated sketch tests.
Merge pull request #50 from mlippert/widget-refactor

SelectOneQuestion work
fix cleanup of selectgroup test

as it was copied from radiogroup test before that got fixed it had the same issue leaving the test div behind.
refactor button widget to have draw method

this breaks all pages which use buttons. I've updated the button test page, but there are more.