Added runtime option that lets one to set a small border around the

workspace that will not be covered by windows when maximizing, and thus
allowing easy access to the clip or menus using the mouse in this
border area, even when the screen is covered by windows maximized in
both horizontal and vertical directions.

A make clean is needed in src/ because new members were added to the
WPreferences structure in WindowMaker.h

WindowMaker/Defaults/WindowMaker.in

@@ -7,6 +7,8 @@
   DisableMiniwindows = NO;
   OpenTransientOnOwnerWorkspace = NO;
   EdgeResistance = 30;
+  WorkspaceBorderSize = 0;
+  WorkspaceBorder = None;
   IconificationStyle = Zoom;
   IconPath = (
     "~/GNUstep/Library/Icons",