gEDA-dev: Complex selection list

[Carlos Nieves Ónega]

Hi,
I put a patch showing the current status of my working tree, in case anyone wants to
take a look at it or make some tests, at:
http://cnieves.iespana.es/geda/complex_place_list_patch.txt

(The 40KB attachment limit of geda-dev doesn't allow to send this ~200KB patch directly).

The changes implemented are mainly using the complex placement list for
moving and copying, as well as replacing the custom SELECTION struct by
a GList.
The work is not finished, but it is usable. There are some known issues:
	- When copying a complex, there is some problem when copying the
saved_color.
	- Zooming while moving works ok, but zooming while copying seems like
zooming in when it should be zooming out, and vice versa.
	- Some others I don't remember at this moment.

Patrick, I think the changes regarding the SELECTION struct are the same
as yours (maybe some name has changed). If you miss something, please
tell me.

I'll be out of the city this weekend, so I won't be able to join the
next Code Sprint. I hope you enjoy it as much as the previous one. See
you next week!

Carlos