HTTP/FTP fetcher

The URNs for the HTTP/FTP fetcher are http, https and ftp. This fetcher honors the variables FETCHCOMMAND_wget. FETCHCOMMAND contains the command used for fetching. ${URI} and ${FILES} will be replaced by the URI and basename of the file to be fetched.

SRC_URI = "http://oe.handhelds.org/not_there.aac"
SRC_URI = "ftp://oe.handhelds.org/not_there_as_well.aac"
SRC_URI = "ftp://you@oe.handheld.sorg/home/you/secret.plan"