servosupport

BUGFIXES for temperature.cpp / add RUMBA thermocouple support

First attempt at refactoring of original servo code. Only adding servo support as a start to keep things simple.

Fixed "Cooldown" Selection not reseting bed temp

Support for BariCUDA Paste Extruder derived from MakerBot Frostruder. Using Ultimachine RAMBo board. M126/M127 and M128/M129.

- 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)

added support for the reprapworld keypad

- changed the variables from keypad to reprapworld_keypad
- added a missing ifdef check

BUG Fix in Commands M907,M350 and M351

The for loop for Axis count over the Array.
Add a break after M907

Solved minor bug in controllerFan()

Extruder 2 was checked where extruder 1 should be checked.

fix DEFAULT_AXIS_STEPS_PER_UNIT minor Z rounding error

Add (as an option) slower SD transfer mode

128x64 RepRapDiscount Full Graphic Smart Controller support

Make Gen7 1.4+ heater temp sensort pins match silkscreen.

Fix: Build error when EEPROM_SETTINGS is defined and PIDTEMP is undefined