o/sitemap-php — pull request #3 by mkly (2013-12-04 00:30:37+00:00)
Title: Fix Fatal Error on Empty Sitemap

Fix Fatal Error on Empty Sitemap

- Check if sitemap has been started by checking `$this->getWriter()`
- If not run `$this->startSitemap()`

This situation can occur if no items were added to the sitemap