Update Marlin/ultralcd_implementation_hitachi_HD44780.h

Fix to a minor bug with hardcoded LCD_WIDTH that draws edited values outside of the 16 characters width LCDs.
Update Marlin/ultralcd_implementation_hitachi_HD44780.h

Use all available characters in narrow LCDs < 20 characters.
Merge pull request #389 from mfeherpataky/Marlin_v1

Update Marlin/ultralcd_implementation_hitachi_HD44780.h
Add SD-Card change and SD-Card init.

Add SD-Card change and SD-Card init. for reprap electronics without
SD-Chard change detect pin.
Update Marlin/ultralcd_implementation_hitachi_HD44780.h

Fix to a bug that I just introduced - sorry. Forgot about offset of string length.
Add Messages for SD Card init. & change
Merge pull request #392 from mfeherpataky/Marlin_v1

Update Marlin/ultralcd_implementation_hitachi_HD44780.h
Merge pull request #391 from STB3/Marlin_with_SD-Card_Change_Menu

Add SD-Card change and SD-Card init. for electronics equipped with LCD Display