Configuration sanity-checking

Latest upstream commits

Cleanup temperature code

A logo for the Marlin wiki

- Remove test of raw temp for thermistor 0 when using MAX6675
- Longer `raw_temp_value` array for `TEMP_SENSOR_1_AS_REDUNDANT`

Latest upstream commits

Report changes from previous PR (#1670) from old code base including :

I've updated the minimum values from the LCD.
It has been a while that i want to at least fix this.
I have an inductive probe and often i need to set my zOffset to something lower than 0.5.
With the current implementation, the default LCD value is set to 0.5 for some reason.
On my case i need to be able to set it down to 0.0 as my inductive probe can be lower than 0.5.
Before with the LCD we couldn't change this value below 0.5. We had to flash the firmware every time which was painful.
Now we are able to change this value down to 0.0 if needed.
I've also changed the minimum value for Z min acceleration.
In the default configuration it's set to 25 but on the LCD the minimum was 100 which is not coherent.
I've changes the minimum to 10. On this axis, depending on the mechanics/motor drivers we might require very low acceleration, so i guess 10 is somehow realistic.

Refactor SCARA calibration. Save some lines of code and possibly ROM.

fix bad insertion config again

- Get rid of unused temp states in the ISR, resulting in more frequent
temperature reading with fewer sensors
- Shrink code slightly in min/max testing

Fix mangled probe_pt calls

- Address issue #1669
- Remove the TOPO_ORIGIN configuration setting

Fix 1507

Don't add home offsets in G29

Fix compile error with `*_DUAL_STEPPER_DRIVERS`

- Patch up macros in stepper.cpp

- Address #1262 by leaving values as set
- Rename `add_homing` to `home_offset`

Latest upstream commits

Manual bed leveling + mesh bed leveling

- `Conditionals.h` is included twice, setting LCD values the first time

Fix temperature min/max test

Latest upstream commits

- Base tests on all thermistors/thermocouples, not just heater 0

Fix for menus failing to scroll

by updating 'encoderPosition' in END_MENU() line 1.