Create wrapper class that handles launching the lemonbar process

and in and out threads

.i3/lemonbar/i3_lemonbar_common.py

@@ -11,8 +11,6 @@ kill_on_unfocus = []
 logger = None
 health_logger = None
 
-bar_in_shelf = None
-
 # TODO bar mode can be moved to i3Module
 class bar_mode(Enum):
     power, normal, control = range(-1,2) # Don't cycle through power