prestaconcept/PrestaSitemapBundle — pull request #43 by arosslau (2014-01-10 16:58:41+00:00)
Title: Made Filename for dumped sitemaps configurable

In Some cases the filename of genreated sitemaps collate with other ones, so its nice to have them configurable.
*(see Commitmessage(s) for details.)*

configexample:
-------------------------

```yml
presta_sitemap:
sitemap_file_prefix: another_sitemap # results in files named another_sitemap.xml; another_sitemap.

.xml
```