Fixed a bug in the gulpfile which caused the dataset default images to not be...

Fixed a bug in the gulpfile which caused the dataset default images to not be included in the build step.

gulpfile.js

@@ -63,8 +63,8 @@ function copyEditorIcons() {
 
 function copyDatasetDefaultImages() {
     return gulp
-        .src(["dataset/images/**/*.png", "dataset/images/**/*.jpg"])
-        .pipe(gulp.dest(dir.build + "dataset/images/"));
+        .src(["datasets/images/**/*.png", "datasets/images/**/*.jpg"])
+        .pipe(gulp.dest(dir.build + "datasets/images/"));
 }
 
 function copyBackground() {