OpenVPN v2.5.5 release

2021.12.14 -- Version 2.5.5

Adrian (1):
      Fix error in example firewall.sh script

Antonio Quartulli (1):
      configure: remove useless -Wno-* from default CFLAGS

Arne Schwabe (2):
      Add argv_insert_head__empty_argv__head_only to argv tests
      Move deprecation of SWEET32/64bit block size ciphers to 2.7

Gert Doering (3):
      Include --push-remove in the output of --help.
      Move '--push-peer-info' documentation from 'server' to 'client options'
      add test case(s) to notice 'openvpn --show-cipher' crashing

Ilya Shipitsin (1):
      BUILD: enable CFG and Spectre mitigation for MSVC

Lev Stipakov (12):
      Fix loading PKCS12 files on Windows
      msvc: fix product version display
      msvc: add missing header to project file
      config-msvc.h: fix OpenSSL-related defines
      contrib/vcpkg-ports: remove openssl port
      GitHub Actions: use latest working lukka/run-vcpkg
      Use network address for emulated DHCP server as a default
      Load OpenSSL config on Windows from trusted location
      ring_buffer.h: fix GCC warning about unused function
      ssh_openssl.h: remove unused declaration
      vcpkg/pkcs11-helper: compatibility with latest vcpkg
      config-msvc.h: indicate key material export support

Max Fillinger (2):
      Don't use BF-CBC in unit tests if we don't have it
      Define have_blowfish variable in ncp unit tests

Richard T Bonhomme (1):
      doc link-options.rst: Use free open-source dynamic-DNS provider URL

Selva Nair (3):
      Fix some more wrong defines in config-msvc.h
      Ensure the current common_name is in the environment for scripts
      Require EC key support in Windows builds

Sergio E. Nemirowski (1):
      resolvconf fails with -p

Todd Zullinger (2):
      Update IRC information in CONTRIBUTING.rst
      doc/man (vpn-network-options): fix foreign_option_{n} typo

Ville Skyttä (1):
      README.down-root: Fix plugin module name
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