Optimized Italian strings to fit in 16 character display

de-language additions

M155 and M156, a generic TWI/I2C interface for Marlin

Additional debug leveling output

This may fix a subtle bug caused by doing `G29` more than once without
`G28` between.

No LCD Move for unhomed Delta/SCARA

No casting needed for SERIAL_ECHOPAIR

Report the probe position in G30

Update pt_PT translation

M109: Protect against EXTRUDE_MINTEMP expansion

Print job timer rework

Fix FILAMENT_WIDTH_SENSOR measurement

Consolidate REPRAPWORLD_KEYPAD, disallow moves for unhomed Delta/SCARA

Rc bug fix

Optimised Ducth messages to fit in 16 Char display Update language_nl.h

Optimised all added messages to fit within 16 Characters

Only measure and store filament width when E is going forward.

rebased my fork with RCBugFix release in order to push language_nl.h

Update Readme.fonts about Kana

Update to language_it.h

I think that that sentence has been completed its part. 
Because Kana fonts were revised by me the other day(PR #3289), who am a native Japanese.

And for @AnHardt,
I'd like to take this opportunity to express one's heartfelt gratitude as a far eastern person,
about you has been maintaining the resource of Japanese despite you are a far western person.

Rc bug fix

Add more leveling-debug output

Final tweaks to M111 output

Catch a TEMP_SENSOR error before a pins issue

Revert #3388, clean up lcd_move code