Minor tweaks to awesomebar patch (incl. alpha and systray compatibility)

patch/awesomebar.c

@@ -1,5 +1,6 @@
 void
 hide(Client *c) {
+
 	if (!c || HIDDEN(c))
 		return;
 
@@ -46,4 +47,21 @@ togglewin(const Arg *arg)
 		focus(c);
 		restack(selmon);
 	}
+}
+
+void
+showhideclient(const Arg *arg)
+{
+	Client *c = (Client*)arg->v;
+	if (!c)
+		c = selmon->sel;
+	if (!c)
+		return;
+
+	if (HIDDEN(c)) {
+		show(c);
+		restack(selmon);
+	} else {
+		hide(c);
+	}
 }

patch/awesomebar.h

@@ -1,3 +1,4 @@
 static void hide(Client *c);
 static void show(Client *c);
-static void togglewin(const Arg *arg);
+static void togglewin(const Arg *arg);
+static void showhideclient(const Arg *arg);

patch/flextile.c

@@ -29,6 +29,7 @@
  *    000100000101   261  default tile layout
  *    000100100101   293  centered master
  *    000100000111   263  default tile layout with grid stack
+ *    000100000001   257  columns (col) layout
  */
 void
 setflexlayout(const Arg *arg)