lemonbar: Cleaning up

Add connection to i3ws object. Log exceptions with debugger

.i3/lemonbar/i3_workspaces.py

@@ -141,6 +141,9 @@ class i3ws(object):
             out += item
         return self.end_format % out
 
+    def command(self, cmd):
+        self.conn.command(cmd)
+
     def display(self, text):
         global print_stdout
         if print_stdout: