[ticket/63] Fix links with virtual root on
[ticket/65] Properly compute start with post urls

usefull for when the zero dupe does redirect post urls.
[ticket/63] try to generate more correct links to start with
Merge pull request #70 from dcz/ticket/65

[ticket/65] Properly compute start with post urls
Merge pull request #69 from dcz/ticket/63

[ticket/63] Fix links with virtual root on