gEDA: Misc changes in CVS

[Ales Hvezda <ahvezda-at-NOSPAMseul_dot_org>]

Hi All,

Here's a list of various changes I made over the past few weeks
which are now in the CVS repository:

	- Renamed the "physical" attribute to "footprint".  Fixed all
	  affected files (gnetlist/backends/symbols/docs).  Also renamed
	  pinlabel and pintype to label and type.

	- Added some more error checking in the read in of objects, this
	  should prevent a coredump if you give gschem/gnetlist an invalid
	  color

	- Changed the default text case to allow for both upper and lower 
	  case (instead of the previous default of only upper)

	- Added the ability to have the source= attribute inside a symbol
	  (Any externally attached source= attribute overrides what is inside
	   completely)
	
	- Added the ability to have multiple filenames in the source= 
	  attribute.  Format: source=filename_1.sch,filename_2.sch...
	  You can have spaces inbetween the commas.  I could make this more
	  flexible (ie more delimiters), but for now it'll do.
	
	- Added the feature that when you expose the gschem window all 
	  opened dialog boxes will raise to the front (much harder to lose 
	  a dialog box).  This is disabled by default (for now), you
	  enable it by putting (raise-dialog-boxes-on-expose "enabled") into
	  a *gschemrc file.

I think that's it.  These changes are only the the CVS version of things.
I'm completely out of touch from April 24th through May 10th.

									-Ales