bootloader restarts on closing bootloader port @1200 baud
Faster read and write flash chip
experimental double reset for standby removed
minor size optimisations
A and B buttons have identical function now
reset on loader screen enters power down mode /wake up from power down
flash chip erase block size changed to 64K for faster flashing
Update Arduboy2 library to 5.2.1
bootloader support for alternate flash chipselect SDA
reverted Sprites.cpp
added checkBatteryState checkBatteryStateLED functions to Arduboy2 library
update cathy3K bootloader with menu scrolling and progressbar