Merge pull request #1239 from ErikZalm/Marlin_v1

getting even with v1
Hysteresis, eeprom, config

* Configuration to match grob's machine
* Implement hysteresis patch
* Store hysteresis to eeprom
* Store bed pid to eeprom
* Stabilise eeprom addresses (skip space for delta, scara parameters
etc, as per LCD panel parameters)
Update gitignore to exclude vs files
Merge branch 'Stable' of https://github.com/grob6000/Marlin into Stable