SitemapXML v.2

[frank18]

Upload versin 3.9.1. Changes:
v 3.7.0 07.07.2016 11:25 - Add configuration parameter for categories paging
v 3.8.0 07.07.2016 12:39 - Code Review. Thanks to steve aka torvista
v 3.9.1 29.08.2016 18:56 - Add auto installer. Thanks to Frank Riegel aka frank18

Thanks Andrew - much appreciated!