Pull-up DATA to deal with controller unplug

ISSUES.txt

@@ -14,3 +14,4 @@ Fixed
 6. Allow jam clock adjustments in setup
 7. Unified build with multiple firmware targets
 8. Debounce buttons
+9. Pull-up NES data to prevent going apeshit when you unplug the controller

avr.c

@@ -39,6 +39,10 @@ avr_init(void)
 	TCCR1B |= _BV(CS11) | _BV(CS10); // prescale: clk_io / 64
 	TIMSK1 |= _BV(OCIE1A);
 	
+	// Pull-up NES data line
+	bit(PORTA, _BV(NESOUT), true);
+
+	// Turn on Power Supply
 	bit(PORTA, _BV(7), true);
 	
 	PORTB = 0xff;