Merge branch 'dev_2' into dev

Conflicts:
README.md
gcode.c
motion_control.c
planner.c
planner.h
protocol.c
report.c
settings.c
settings.h
stepper.c
stepper.h

eeprom.h

@@ -2,7 +2,7 @@
 #define eeprom_h
 
 char eeprom_get_char(unsigned int addr);
-void eeprom_put_char(unsigned int addr, char new_value);
+void eeprom_put_char(unsigned int addr, unsigned char new_value);
 void memcpy_to_eeprom_with_checksum(unsigned int destination, char *source, unsigned int size);
 int memcpy_from_eeprom_with_checksum(char *destination, unsigned int source, unsigned int size);