Factory classes should be final

git-svn-id: http://vopenlayers.googlecode.com/svn/trunk@210 37e336fd-f6aa-ac36-3442-120c8ea9bd2d
Added example of using external graphic as point vector + rotation

git-svn-id: http://vopenlayers.googlecode.com/svn/trunk@211 37e336fd-f6aa-ac36-3442-120c8ea9bd2d
Restored VVectorLayer.createSelectFeature().
Fix in SelectFeatureFactory in Container.removeLayer().
Simple fix in VOpenLayersMap.