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

src/WindowMaker.h

@@ -219,6 +219,13 @@ typedef enum {
 #define WD_BOTTOMRIGHT	7
 
 
+/* workspace border position */
+#define	WB_NONE		0
+#define	WB_LEFTRIGHT	1
+#define	WB_TOPBOTTOM	2
+#define	WB_ALLDIRS     	(WB_LEFTRIGHT|WB_TOPBOTTOM)
+
+
 /* program states */
 #define WSTATE_NORMAL		0
 #define WSTATE_NEED_EXIT	1
@@ -420,6 +427,9 @@ typedef struct WPreferences {
     int edge_resistance;
     char attract;
 
+    unsigned int workspace_border_size; /* Size in pixels of the workspace border */
+    char workspace_border_position;     /* Where to leave a workspace border */
+
     struct {
         unsigned int nodock:1;	       /* don't display the dock */
         unsigned int noclip:1;         /* don't display the clip */