* bantu/ticket/9297:
[ticket/9297] Add network to class name of unit tests.
[ticket/9297] Fix typo in localhost.
[ticket/9297] Rename test class to reflect its contents.
[ticket/9297] Adjust comment - IPv6 is needed for IPv6 connections to work.
[ticket/9297] Fix markTestSkipped call in setUpBeforeClass.
[ticket/9297] Skip FTP PASV/EPSV test if FTP connection fails.
[ticket/9297] Separate ipv4 and ipv6 tests into separate functions.
[ticket/9297] Update copyright year of unit test file.
[ticket/9297] Make EPSV unit tests work without IPv6.
[ticket/9297] Unit tests for ftp_fsock PASV and EPSV.
[ticket/9297] Add support for Extended Passive Mode (EPSV) in ftp_fsock class.