Show the "Amplified from sample" as the parent library id and allow

Show the "Amplified from sample" as the parent library id and allow
searching on that on the public library index.

Additionally detect if we have an eland_multi or eland extended file
and make the url to download those different files. (and change the
link name slightly to reflect you're getting a different file.)

finally don't bother showing the bed downloader for newer file types
as the bed convertor doesn't work on them.