systray, dock, icon_handler some major revision

awesome/crylia_bar/left_bar.lua

@@ -11,6 +11,7 @@ local wibox = require("wibox")
 return function (s, widgets)
 
     local top_left = awful.popup{
+        screen = s,
         widget = wibox.container.background,
         ontop = false,
         bg = colors.color["Grey900"],
@@ -50,4 +51,4 @@ return function (s, widgets)
         nil,
         layout = wibox.layout.fixed.horizontal
     }
-end
+end