MFC revisions 255908, 255925, and 255925:

SVN r255908:
Fix a bug in HTTP checking/fetching. Add Main Site to HTTP menu. Add new
example script browse_packages_http.sh and move existing example script
browse_packages.sh -> browse_packages_ftp.sh

SVN r255925:
Remove the is (Iceland) mirror per mail from the admins.

SVN r255925:
Remove ftp5.se.f.o, as per request to -hubs@