* Fix problem with curve mapping / color ramps not updating
things like previews propertly. Now it uses the RNA update
of the pointer from the material/texture/.. so each of those
can define their own update, but still share the RNA struct.
* Code for these templates is now in interface_templates.c
* Fix exception for "axis" property, now it always shows normal
widget with the PROP_DIRECTION subtype.
* Remove context from uiBlockLayoutResolve, no longer needed.