Improved blink effect.
Replace 1 << x with _BV(x) macro.
Fix compile warning.
Cleanup of unused sounds.
battery_report_capacity() moved to battery.c
Removed unnecessary code.
Merge branch 'wt588d_cleanup' of github.com:rmoravcik/jarvis-2.0 into wt588d_cleanup

Conflicts:
	firmware/voice.h