Added the ability to reuse connection in FTP and it is enabled
by
default. It can be disabled by --ftp-reuse-connection=false
option.
* src/Command.cc
* src/DownloadCommand.cc
* src/FtpDownloadCommand.cc
* src/FtpDownloadCommand.h
* src/FtpFinishDownloadCommand.cc
* src/FtpFinishDownloadCommand.h
* src/FtpInitiateConnectionCommand.cc
* src/FtpNegotiationCommand.cc
* src/FtpNegotiationCommand.h
* src/HelpItemFactory.cc
* src/Makefile.am
* src/Makefile.in
* src/OptionHandlerFactory.cc
* src/option_processing.cc
* src/prefs.h
* src/usage_text.h