3.0.13

• SSH2: make login() return false if no valid auth methods are found (#1744)
• SSH2: show a more helpful error message when logging in with pubkey (#1718)
• SSH2: rsa-sha2-256 and rsa-sha2-512 sigs weren't verifying (#1743)
• SFTP: fix chgrp() for version < 4 (#1730)
• Crypt/Base: add OFB8 as a new mode (phpseclib/mcrypt_compat#33)
• Crypt/Salsa20: fix PHP 5.6 error (#1717)
• RSA & BigInteger: check phpinfo() available before using it (#1726)
• Fixed psalm level 6 errors in phpseclib/Net/ (#1746)