Fix a bug in HTTP checking/fetching.
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

Reviewed by:	gjb, brd
Approved by:	re (gjb), clusteradm (brd)
MFC after:	3 days