Blender Git Loki

Fix: Silence texture stack owner_id warnings in debug mode from anim_filtering code

The Blender Internal removal (51b796ff1528c52cc8b4079fab1003671652a4d9)
removed support for texture slots from Materials/Lamps/Worlds,
but didn't remove the relevant parts from the animation editor filtering
code that were responsible for adding the texture slots for those channels.