Add DEBUG_LEVELING output for gcode_T

General cleanup of language files

Additional Russian translations

Initialize stepper counts for Delta/SCARA

Fix a messed up ELAPSED instance

Thanks to @gans-AD – #3363

Fix Deutsch string errors, redundancies

Fix for M109 and M190 cooldown

Also removes the re-definition of now inside M190's while loop

Fix-Servo-without-endstop/probe

More bits when encoderPosition is cast as signed

Fix home_offset handling and account for it in G29

Add CORE support to st_set_position and plan_set_position

Sorry for not having realized someone (me) redefined not existing servo pinns to -1, some lines above.
This is a simple error - not a feature.

Versions of Arduino IDE prior to 1.6.0 are no longer supported

ELAPSED / PENDING for rollover-safe time checking

Remove redundant text from MSG_ERR_REDUNDANT_TEMP

Add missing translations for German

Added missing pt_BR translation

Add a case for M113 to process_next_command

Adjust timeout code in host_keepalive

Wrong Pin Assignment Megatronics 3

SERVO2 is doubled defined and causes compiler errors

Host Keepalive configurable timeout with 2s default

Fix bug which can cause an infinite M109 loop

Update language_da.h

Update language_da.h

Optimized Italian strings to fit in 16 character display

de-language additions