Release Version 2.9.0 · ploxiln/paramiko-ng

#103 + #112: require Cryptography 2.6+, remove dependency on PyNaCl
#76 add paramiko.__pkgname__ to distinguish from original Paramiko, and adjust Transport client-id
#121 / paramiko#1189: use poll() instead of select() if possible
#113 gssapi: remove support for old gssapi-python
#129 transport: prefer ETM mac by default
#152 remove cipher 3des-cbc, for key decrypt import from "decrepit" (avoid Cryptography package warnings)
#136 / paramiko#2039 Remove blowfish from transport ciphers (was already omitted in default "preferred" list)

#114 #124 pkey: fix __str__() for python3, fix __cmp__() for python2 (already backported to paramiko-ng 2.8.10)
#104 / paramiko#1933: rsakey: pad received signature with leading zeros (not needed for openssh, mostly affects paramiko server-mode when client is Putty) (already backported to paramiko-ng 2.8.8)
#106 / fix paramiko#908: Public key comparison used hash() output (only 32 or 64 bits) - fix to compare full public key values. For more details see https://www.paramiko.org/changelog.html#2.8.1 (already backported to paramiko-ng 2.8.8)
#107 / paramiko#1024: hostkeys: fix raising KeyError in SubDict.__delitem__() (inappropriately) (already backported to paramiko-ng 2.8.8)
#118 packet: fix dump_packets debug logging repeating bytes (since ETM mac algos added) (already backported to paramiko-ng 2.8.10)
#108 / paramiko#1266: rsakey,ecdsakey: catch TypeError and UnsupportedAlgorithm, raise SSHException
#113 / paramiko#2002 fix memory leak from caching thread-id
#144 paramiko#2098 demos: fix TypeError in interactive shell on Windows

#134 #139 / paramiko#1868 paramiko#2010 agent: support OpenSSH agent on Windows (in addition to pageant)
#123 SSHClient: add get_security_options()
#68 client: add handshake_timeout kwarg to connect()
#147 Add open_timeout kwarg to exec_command()
#71 / paramiko#1535 add send_signal() method to Channel
#105 pkey: new methods get_fingerprint_sha256_b64() and get_fingerprint_md5() (alias for get_fingerprint() which remains for now)

#80 transport: if (host, port) tuple is passed, set a 30-second timeout for tcp connect (if socket is passed, timeout is not modified)
#151 transport: improve protocol banner exception string
#88 add filename to exceptions raised when loading keys
#114 also has some minor cleanup and refactoring of asbytes() and __hash__() for ecdsa / ed25519 key types
#150 paramiko#2165 call Message.asbytes() directly (minor optimization)
#119 #132 #137 some documentation cleanups / fixups
#143 #131 #153 CI / build updates

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