Fix bad test.
Merge pull request #1417 from AnalyticalGraphicsInc/description

Description property for CZML
Initial breakup of selection and info box.

Unit tests are broken, and the mixin isn't tolerant of the
widgets being turned off yet.
Merge remote-tracking branch 'origin/master' into box-select
Rename events.
Size & position code cleanup.
Code cleanup.
Make the mixin tolerant of the new widgets being turned off.
Fix some bad Sandcastle CSS that messes up the infoBox camera button.
Update InfoBox tests.
Add tests, improve code coverage for new widget view models.