BSD licence added.
BSD licence added.

raphaa/cmsplugin-htmlsitemap,oliwarner/cmsplugin-htmlsitemap,barseghyanartur/cmsplugin-htmlsitemap,oliwarner/cmsplugin-htmlsitemap,barseghyanartur/cmsplugin-htmlsitemap,raphaa/cmsplugin-htmlsitemap