New UCD1+ for SIA protocol

[Anita Richards]

>
> 1) VOX:Image_Scale --> instr.scale
>
> A much better alternative could be the definition of the new ucd1+:
> obs.image.scale

That still suggest to me that the scale is inherant to the observations -
but it is better

> 2) UCD1+:meta.bullshit (Bob's message)

> bigger/detailed file, and the tag slipped through. If and when we will move
> to ucd1+, I'll remove it.
Or jsut wait until your critics stop talking bullshit?

You and Roy and Sebastien have done a pretty good job if people can only
find 1.5 ucd1+'s to complain about!

a