lemonbar: update workspaces to newer version of i3ipc.

Also temporary placeholders in conky for battery and screen brightness
when on desktop

.i3/lemonbar/i3_lemonbar_modules.py

@@ -270,13 +270,13 @@ class i3Module(LemonModule):
             # Find out which output the workspace is on
             output = None # TODO actually use this information
             for output_ in i3ws.outputs:
-                if output_['name'] == workspace['output']:
+                if output_.name == workspace.output:
                     output = output_
                     break
             if not output:
                 continue
             status = i3ws.state.get_state(workspace, output) # FOC or INA
-            name   = workspace['name']                          # e.g. 5 terms
+            name   = workspace.name                          # e.g. 5 terms
             current = ''.join([parser.block(click=('i3-msg workspace' + name))
                     , name, parser.block(click='')])
             if status == "FOC":