Added functionality to find alternate download urls.
Currently only works on the detail page.

This functionality will check if the website url is a alternate download, if it does not meet the search criteria it will try to find the url in the spot description.

TODO: Also implement this on the list page, the combined nzb and the push to sabnzbd
Merge branch 'master' of https://github.com/michaelw85/spotweb

Conflicts:
	lib/SpotTemplateHelper.php