stunnel:
 * use "version-bump-resistant"-download-URL, the current one points to a folder containing only the latest version (doesn't matter for trunk, but would be better for the less maintained branches)
 * refs #2177, refs #2072


git-svn-id: file:///var/svn/freetz/trunk@11004 149334a1-2f27-0410-a3b9-fc62619ac1e6