Keyboard shortcut to raise the dock

This patch adds the DockRaiseLowerKey shortcut, which raises/lowers
the dock depending on whether the dock is lowered/raised.

[crmafra: Reformatted Brad's patch against git repo and removed the
 DockRaiseKey and DockLowerKey shortcuts ]

src/defaults.c

@@ -559,6 +559,8 @@ WDefaultEntry optionList[] = {
 	 NULL, getKeybind, setKeyGrab},
 	{"WindowMenuKey", "None", (void *)WKBD_WINDOWMENU,
 	 NULL, getKeybind, setKeyGrab},
+	{"DockRaiseLowerKey", "None", (void*)WKBD_DOCKRAISELOWER,
+	 NULL, getKeybind, setKeyGrab},
 	{"ClipLowerKey", "None", (void *)WKBD_CLIPLOWER,
 	 NULL, getKeybind, setKeyGrab},
 	{"ClipRaiseKey", "None", (void *)WKBD_CLIPRAISE,

src/event.c

@@ -1690,6 +1690,10 @@ static void handleKeyPress(XEvent * event)
 		if (!wPreferences.flags.noclip)
 			wDockRaiseLower(scr->workspaces[scr->current_workspace]->clip);
 		break;
+	case WKBD_DOCKRAISELOWER:
+		if (!wPreferences.flags.nodock)
+			wDockRaiseLower(scr->dock);
+		break;
 #ifdef KEEP_XKB_LOCK_STATUS
 	case WKBD_TOGGLE:
 		if (wPreferences.modelock) {

src/keybind.h

@@ -50,6 +50,9 @@ enum {
 	/* window, menu */
 	WKBD_CLOSE,
 
+	/* Dock */
+	WKBD_DOCKRAISELOWER,
+
 	/* Clip */
 	WKBD_CLIPLOWER,
 	WKBD_CLIPRAISE,