**2019.7.21-r1 (201907211)**

- `acc -f`: fixed "daemon not restarted" issue
- `acc -x`: fixed "file not found" error
- Enhanced busybox detection and handling
- Fixed `install-latest.sh` inconsistencies
- Fixed voltage limit typo: 3920-4349, 3500-4350
- Start `accd` immediately after installation (no more ~30 seconds delay)