Improve ESC/POS printer support and Discounts
Here is my contributions:
- Upgrade RXTX library to improve Linux support
- Auto resize application at startup when the screen is small
- Change text size 2 and 3. They were too big
- Improve ESC/POS support
- Solve many bugs around discont on tickets (client and Z)
- Add printer parameters to improve support of 58, 80mm printers and bigger