restore composer.json, add mysqli extension

public/vendor/dashboard/gulp-tasks/copy/js.js

@@ -0,0 +1,6 @@
+var gulpCopy = require('gulp-copy');
+
+module.exports = function(gulp, callback) {
+	return gulp.src(config.source.js+'/**/*.js')
+		.pipe(gulp.dest(config.destination.js));
+};