- Fixed epaper power up / power down bug that caused problems on some epaper panels (random vertical black lines). Some informations on how to properly pwr up/down TPS65186 Epaper PMIC is missing in datasheet.
- Better cleaning (for some reason, whilte color can easly "overcharge" screen, so now the are less white frames than black ones). [This problem is visible if the panel is refreshed multiple times in a row, screen after has been powerd down starts to fade]
- Improved HW sequence (there was some issue with line clock and start pulse vertical signal)
- Removed vscan_write() function (it's not needed anymore).
- Some minor bug fixes
