gEDA-dev: Switch all drawing variables into the world coordinate system

[Ales Hvezda]

[snip]
>Please let me know what you think about the changes.
>Any suggestions and additions are welcome.

	From a very high level, these changes sound okay to me.  
I look forward to playing with the changes.

>
>@Ales: 
>When do you plan to create a new release of gEDA?

	I'm actually in no rush.  I have a ton of things that I want to 
change, but my free time is/has been limited.   I'll release when there
are enough changes to make a release interesting (maybe in a few months?).
I would still like to do a 1.4.1 release, but again, there have to be
changes/fixes to make it worth it.

								-Ales