GUI can create silk screen objects.

- made xpm name manipulation compatible with older versions of ImageMagick
  (reported by Alvaro Lopes)
- corrected all lines beginning with five or more spaces
- Makefile
- README: fixed loop example (reported by Joerg Reisenweber)
- moved draw_arc and draw_circle from gui_inst.c to gui_util.c
- added dragging and hovering
- added creation of lines, rectangles, and arcs via GUI
- removed arc tool (use circle instead)
- fixed reference counting in vectors



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5384 99fdad57-331a-0410-800a-d7fa5415bdb3

README

@@ -277,9 +277,9 @@ loop n = 1, 3
 
 and
 
-loop n = 1, 3
+loop n = 1, 3.5
 
-both assigns the values 1, 2, and 3 to the variable "n".
+both assign the values 1, 2, and 3 to the variable "n".
 
 When a loop is executed, the objects contained in the body of the
 enclosing frame are generated for each value of the variable. If