Update language_de.h with MSG_MOVE_E1 - E4

MSG_MOVE_E1 was missing
MSG_MOVE_E2 was missing
MSG_MOVE_E3 was missing
MSG_MOVE_E4 was missing

I assigned "0" to "MSG_MOVE_E1", "1" to "MSG_MOVE_E2" and so on, as this is what i assume to be the standard naming for the first (E0) and second (E1) extruder. This would have to be changed inthe other languages too :(

Include days in Graphical LCD print timer

Throw MINTEMP BED error only if heating

Show up to 99:59 in digital time

Patch command order in delta calibration menu

Make DELTA_CALIBRATION_MENU more universal

MISO is an input

Always disable SLOWDOWN for DELTA/SCARA

Fix Z_DUAL_ENDSTOPS with Z MIN Homing

Explain that Z_PROBE_*_HEIGHT options are nozzle-relative

Within Marlin, maintain most feed rates in mm/s

Remove premature int-cast from MBL cell index methods

Save bytes for custom chars (Hitachi LCD)

Repair SPI-pins, some other pins

for travis builds.

SCK_PIN can't be defined as DIO[number] they mus be defined as pure number.
So rebuilding the structure of fastio.h in pins.h.

Make Allen Key Probe stow

by switching off the tests for the probe before the stow move.