Aspera CLI v4.19.0

• New Features:
  • server: add support for async (Aspera Sync) from Transfer SDK
  • global: #156 support sending folders with httpgw
  • global: new value for option format: multi
• Issues Fixed:
  • aoc: #157 fix problem with files browse on a link
  • sync: better documentation and handling of options.
• Breaking Changes:
  • global: Default value for direct agent option transfer_info.multi_incr_udp is true on Windows, and now false on other platforms.
  • global: Token based transfers now use the RSA key only. Direct agent option transfer_info.client_ssh_key allows changing this behavior.