better hsla regex (#37)

also I see no need to add 360 twice

Author: Nakilon

index.js

@@ -128,12 +128,12 @@ cs.get.hsl = function (string) {
 		return null;
 	}
 
-	var hsl = /^hsla?\(\s*([+-]?\d*[\.]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/;
+	var hsl = /^hsla?\(\s*([+-]?(?:\d*\.)?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/;
 	var match = string.match(hsl);
 
 	if (match) {
 		var alpha = parseFloat(match[4]);
-		var h = ((parseFloat(match[1]) % 360) + 360) % 360;
+		var h = (parseFloat(match[1]) + 360) % 360;
 		var s = clamp(parseFloat(match[2]), 0, 100);
 		var l = clamp(parseFloat(match[3]), 0, 100);
 		var a = clamp(isNaN(alpha) ? 1 : alpha, 0, 1);