lemonbar: Cleaning up

Add connection to i3ws object. Log exceptions with debugger

.i3/lemonbar/i3_lemonbar_launcher.py

@@ -154,8 +154,9 @@ def exec_commands():
         try:
             modules.do_action(data)
 
-        except:
+        except Exception as e:
             common.logger.debug('Exception occured executing command\n Line in: {}'.format(data))
+            common.logger.debug(str(e))
         if len(data) == 0:
             common.logger.debug("Lemonbar output closed")
             break