Release 1.00
	- First official version
				
Release 2.00
	- First version with the bootloader
		
Release  2.02
	- Empty string can be stored by "gprs user" command
	- Empty string can be stored by "gprs password" command
	 	
Release  2.03
	- Added command 'adc data'
	- Changed project name to TachoTerminal GPRS 		
		
Release  2.04
	- Reduced minimum voltage V_USB_Detect to 4.3V for the battery charging
		
Release  2.05
	Changed LED functionality
	- LED[0] - indicates power
	- LED[1] - indicates driver card reading and operation on SD card
	
Release  3.00.90
	- Updated bootloader to 2.0.19
	- Corrected reading of driver card
	- Exteded version number to 3 fields
		
Release  3.01.101
	- Corrected reading of driver card. It is possible to read Spanish and Portuguese cards.

Release  3.02.103
	- Fixed firmware crash when file sent using the GPRS modem
				
Release  3.03.106
	- Corrected reading of driver card