gEDA-dev: magnetic net mode is so damn cool

[Werner Hoch]

Hi there,

I've taken the patch [#1824420] 
http://sourceforge.net/tracker/index.php?func=detail&aid=1824420&group_id=161080&atid=818428
and integrated it into my gaf repo:
http://repo.or.cz/w/geda-gaf/werner.git?a=shortlog;h=magnetic2

It's mostly the same as the patch but with following things changed:
* integration to the options menu
* TOPLEVEL vs. GSCHEM_TOPLEVEL splited
* indentation.
I've manually merged it. There are sometimes segfaults, not sure if it 
was in the original patch or in my improper integration.


I've reworked the patch and the result is in this branch:
http://repo.or.cz/w/geda-gaf/werner.git?a=shortlog;h=magnetic3

Not yet ready for integration, but damn cool to use ;-)

I need to cut it into smaller commits, add some documentation and do 
some function renamings.

Regards
Werner