menu using Sitemap, only with html files
enclosed list items in <li> according to Jan's comment
Merge pull request #3 from CodePadawans/2-Sitemap

menu using Sitemap, only with html files
resolves #2
Merge remote-tracking branch 'origin/master' into 4-header_and_footer

Conflicts:
	Padrino-Docu/source/layouts/layout.erb