Added textureMatrix to Polygon
Remove textureMatrix from Polygon. Add textureRotationAngle to setPositions and configureFromPolygonHierarchy of Polygon.
Merge branch 'master' into texturerotation2
Update CHANGES.md.
Get correct bounding rectangle for polygons with rotated texture coordinates.
Doc tweaks
Tweaked CHANGES.md
Merge pull request #463 from AnalyticalGraphicsInc/texturerotation2

Polygon texture rotation.