Added an overall configuration file

Added more info about the current sensor and a gcode for calibrate it

Update 4.1.5 dev

Update from origin

This reverts commit a3be0913.

This reverts commit 9304ed3a.

Update 4.1.5 RC

See changelog.md for more info

Update from master

See changelog.md for more info

Update 4.1.5 dev

Update from origin

STEPPER BUGFIX

Update 4.1.5

Update from master

Update 4.1.4 dev