v0.29.0

• update to libssh 0.9.0 from https://www.libssh.org/files/0.9/libssh-0.9.0.tar.xz (changelog see https://www.libssh.org/2019/06/28/libssh-0-9-0/:
  -- Added support for AES-GCM
  -- Added improved rekeying support
  -- Added performance improvements
  -- Disabled blowfish support by default
  -- Fixed several ssh config parsing issues
  -- Added support for DH Group Exchange KEX
  -- Added support for Encrypt-then-MAC mode
  -- Added support for parsing server side configuration file
  -- Added support for ECDSA/Ed25519 certificates
  -- Added FIPS 140-2 compatibility
  -- Improved known_hosts parsing
  -- Improved documentation
  -- Improved OpenSSL API usage for KEX, DH, KDF and signatures
• Grouping Profile entries in submenus #259 (thanks @printpagestopdf )
• Added auto-connect feature for easy remote work on startup and "multiple" connections #225 (thanks @andymule )