Adding support for setting up a layout of the new tag.

util/init.lua

@@ -111,13 +111,13 @@ end
 -- {{{ Dynamic tagging
 
 -- Add a new tag
-function util.add_tag()
+function util.add_tag(layout)
     awful.prompt.run {
         prompt       = "New tag name: ",
         textbox      = awful.screen.focused().mypromptbox.widget,
         exe_callback = function(name)
             if not name or #name == 0 then return end
-            awful.tag.add(name, { screen = awful.screen.focused() }):view_only()
+            awful.tag.add(name, { screen = awful.screen.focused(), layout = layout or awful.layout.layouts[0] }):view_only()
         end
     }
 end