Configuration Changes

- Extruder runout prevention
- software endstops
- E
Fixed "Cooldown" Selection not reseting bed temp

- enquecommand with multiple lines "\n" doesn't work -> M140 S0 didn't
get processed. So I wrote a new func for the cooldown which uses
setTargetHotend. In addition this does return to status page after
selection.
- Added setWatch() to preheat-functions (Temperatur sanity check would
never have worked when preheating from the lcd panel)