Some formatting in EllipseGeometry.
Add texture rotation to ellipse and circle geometry.
Rotate tangents and binormals of extent when texture is rotated.
Add test.
Add extruded ellipse rendering tests.
Change t texture coordinate of ellipse geometry.
Optimize polyline collection bounding spheres.
Remove unused variable.
Merge branch 'master' into ellipseTextureRotation
Remove unused variable.
Merge master into polylineBoundingSphere.
Clone bounding sphere after creating a command instead of union with previous.
Merge branch 'master' into polylineBoundingSphere
Add test.
Revert attribute changes, but still back vertex attribute 0 by a buffer.
Merge branch 'master' into ellipseTextureRotation
Match texture rotation with geometry rotation.
Merge pull request #2 from mramato/kml-style-fixes

Style specs and minor tweaks.
Remove empty functions
Remove unnecessary checks