[1.1] No retroactive adjustment with M851 Z

This is a non-intuitive change.   @oldmcg says in this post https://github.com/MarlinFirmware/Marlin/issues/7572#issuecomment-340641207 that using DELTA_PRINTABLE_RADIUS is better than DELTA_PROBABLE_RADIUS for setting the probe limits.   This is because the automatic probe code checks all locations for being reachable by the probe prior to doing the probe.

[1.1.x] Fix PlatformIO dependencies

[1.1] gitignore visual studio update

[1.1] Fix FILAMENT_LCD_DISPLAY, disabled state, optimize

aligned with marlin 2.0 gitgnore to support visual studio  community edition

Fixes #7978

[1.1] Add OV() macro for thermistor tables

[1.1] Fix 'M32 P' subroutines

[1.1.x] Fix Software Fan PWM

[1.1] Fix parser value handling

[1.1] Add M114_DETAIL to Configuration_adv.h

[1.1] Fix compile warnings for REPRAPWORLD_KEYPAD

[1.1] Move test extrusion options under G26

[1.1.x] Update pin definitions for PRINTRBOARD REV F.

[1.1.x] Fix M428

* Fix up Travis CI and compile warnings/errors

* No ULTRA_LCD with REPRAP_DISCOUNT_SMART_CONTROLLER

* No point in setting all the endstop plugs

This fixes the old implementation of M428 which was broken, did not
match the website, and made no sense.

[1.1] Fix Printrboard pins for parity with 2.0

Thanks @RowanMeara!

[1.1] Remove offsets from soft endstops, tool change

[1.1.x] Normalize load/unload length in M600