Version 8.0.0 beta 6

IECore

• LinkedScene( SceneInterfacePtr ) supports writable scenes
• Fixed SceneCache from IndexedIO bug
• Fixed linking issues with IECore::CamelCase

IECoreHoudini

• SceneCache SOP transforms all Point, Normal, and Vector primitive variables (previously it only transformed P and N)
• Preventing double cooking in HoudiniScene::scene( path )