Sitemap email notification feature

New : Email alert facility to let you know when your sitemap is ready.

Instead of sitting there waiting for your sitemap you can now enter your email address so that when your sitemap is ready, we will send you an email to let you know!

Fix : Error locating sitemap when spidering from a non root location.

Some users were using urls that were not the root of the domain e.g. xmlsitemapgenerator.org/illustration and this was sometimes tripping our spider up.