If several protocols are available for a mirror, aria2 now use
one of
them. --metalink-preferred-protocol option was added to specify
the
preference of protocol.
* src/AbstractCommand.cc
* src/OptionHandlerFactory.cc
* src/ServerHost.{h, cc}
* src/Metalink2RequestGroup.cc
* src/RequestGroup.{h, cc}
* test/RequestGroupTest.cc
* src/option_processing.cc
* src/prefs.h
* src/HttpResponseCommand.cc
* src/MetalinkResource.{h, cc}
* src/FtpNegotiationCommand.cc
* src/MetalinkEntry.{h, cc}
* src/MetalinkEntryTest.cc