restore composer.json, add mysqli extension

public/vendor/dashboard/gulp-tasks/csscomb/css.js

@@ -0,0 +1,7 @@
+var csscomb = require('gulp-csscomb');
+
+module.exports = function(gulp, callback) {
+	return gulp.src( ['**/*.css', '!**/*.min.css'], { cwd: config.destination.css } )
+		.pipe(csscomb())
+		.pipe(gulp.dest(config.destination.css));
+};