Increase test:phantom timeout

gulp/tasks/test.js

@@ -21,7 +21,7 @@ gulp.task('test:phantom', ['minify:acorn'], function() {
     return gulp.src('index.html', { cwd: 'test' })
         .pipe(qunits({
             checkGlobals: true,
-            timeout: 20
+            timeout: 40
         }));
 });