Why is subprocess.call subprocess.callcall? Fix this.
Move updating the timer for the AstroClock to its own timer since
planets don't move every second to warrant a redraw update every
second. May make redraw interval for this customizeable later.
Toggle display of graphical astrological clock
Don't start the draw_timer if astroClock isn't there
Use idx.data to retrieve dates in {astro,css}calendar