Allow for disabling the cache

lib/index.js

@@ -11,7 +11,13 @@ module.exports = function () {
 
 	var cacheKey = options.cacheKey != null ? options.cacheKey : "preset";
 
-	var streamList = [cache(cacheKey), sass()];
+	var streamList = [];
+
+	if (cacheKey !== false) {
+		streamList.push(cache(cacheKey));
+	}
+
+	streamList.push(sass());
 
 	if (options.livereload != null) {
 		streamList.push(livereloadPartial(options.livereload));

src/index.js

@@ -9,10 +9,13 @@ const sass = require("gulp-sass");
 module.exports = function(options = {}) {
 	let cacheKey = (options.cacheKey != null) ? options.cacheKey : "preset";
 
-	let streamList = [
-		cache(cacheKey),
-		sass()
-	];
+	let streamList = [];
+
+	if (cacheKey !== false) {
+		streamList.push(cache(cacheKey));
+	}
+
+	streamList.push(sass());
 
 	if (options.livereload != null) {
 		streamList.push(livereloadPartial(options.livereload));