Update gulpfile.js

If gulp finds css files in scss directory, it will copy them into css directory.

gulpfile.js

@@ -2,7 +2,9 @@ var gulp = require('gulp');
 var sass = require('gulp-sass');
 
 gulp.task('default', function(){
-	return gulp.src('./scss/**/*.scss')
+	gulp.src('./scss/**/*.css')
+		.pipe(gulp.dest('./css'));
+	gulp.src('./scss/**/*.scss')
 		.pipe(sass().on('error', sass.logError))
 		.pipe(gulp.dest('./css'));
 });