Revert "widgets: don't do anything when clicking on tasklist"

This reverts commit dd27658d13. OK, if I
minimize something, I need it.

rc/widgets.lua

@@ -229,6 +229,20 @@ local layoutbox = {}
 
 local taglist = {}
 local tasklist = {}
+tasklist.buttons = awful.util.table.join(
+   awful.button({ }, 1, function (c)
+		   if c == client.focus then
+		      c.minimized = true
+		   else
+		      if not c:isvisible() then
+			 awful.tag.viewonly(c:tags()[1])
+		      end
+		      -- This will also un-minimize
+		      -- the client, if needed
+		      client.focus = c
+		      c:raise()
+		   end
+			end))
 
 for s = 1, screen.count() do
     promptbox[s] = awful.widget.prompt({ layout = awful.widget.layout.horizontal.leftright })
@@ -237,7 +251,7 @@ for s = 1, screen.count() do
        function(c)
 	  local title, color, _, icon = awful.widget.tasklist.label.currenttags(c, s)
 	  return title, color, nil, icon
-       end)
+       end, tasklist.buttons)
 
     -- Create the taglist
     taglist[s] = awful.widget.taglist.new(s,