Fix test due to bug fix in Chrome.
Check for stencil is OK since it is false
Fixed PolygonGeometry extruded bounding sphere, modified rendering tests for extruded extent
Merge remote-tracking branch 'origin/master' into macfixes
Merge branch 'master' into macfixes
Merge remote-tracking branch 'origin/master' into macfixes
Merge remote-tracking branch 'origin/master' into macfixes
remove unnecessary height translation
correct extruded ellipse rendering test
Merge pull request #1059 from AnalyticalGraphicsInc/macfixes

Fixes for Mac tests