more nitpicking

Inconsistent code spacing, as well as other things that make my code linter itch have been fixed.

In Javascript/airgap.js

@@ -3,40 +3,40 @@
 //Tested to be working on Chrome at 1560khz
 
 function now() {
- return performance.now()*1000000;
+	return window.performance.now() * 1000000;
 }
 
 var NSEC_PER_SEC = 1000000000;
 var register = 3.1415;
 
-function square_am_signal(time,freq) {
-	document.getElementById('logs').value += "Playing / "+time+" seconds / "+freq+"Hz\n";
-	var period = NSEC_PER_SEC/freq;
+function square_am_signal(time, freq) {
+	document.getElementById('logs').value += "Playing / " + time + " seconds / " + freq + "Hz\n";
+	var period = NSEC_PER_SEC / freq;
 	var start = now();
-	var end = now()+time*NSEC_PER_SEC;
+	var end = now() + time * NSEC_PER_SEC;
 	while (now() < end) {
-		var mid = start+period/2;
-		var reset = start+period;
-		while (now()<mid) {
+		var mid = start + period / 2;
+		var reset = start + period;
+		while (now() < mid) {
 			for (var i = 0; i < 100; i++) {
 				register = 1 - Math.log(register) / 1.7193;
 			}
 		}
-		while(now() < reset){
-		}
+		while (now() < reset) {}
 		start = reset;
 	}
 }
 
 function start() {
 	var song = document.getElementById("tones").value.split(":");
 	var length = song.length;
-	var i = 1, line, time, freq;
+	var i = 1,
+		line, time, freq;
 	while (1 <= length) {
 		line = song[i].split(" ");
 		if (line[0] == "beep") {
 			freq = +line[0].split("=")[1];
-			time = +line[2].split("=")[1].slice(0,-1);
+			time = +line[2].split("=")[1].slice(0, -1);
 			square_am_signal(time, freq);
 		}
 		if (line[0] == "delay") {