restore composer.json, add mysqli extension

public/vendor/dashboard/gulp-tasks/sass/pages.js

@@ -0,0 +1,7 @@
+var sass = require('gulp-sass');
+
+module.exports = function(gulp, callback) {
+	return gulp.src(config.source.sass+'/pages/**/*.scss')
+		.pipe(sass().on('error', sass.logError))
+		.pipe(gulp.dest(config.destination.css + '/pages/'));
+};