v7.5.0

Features

• whether check peer certificate configurable (Jianhui Zhao)
• ssl: clearer error message (Jianhui Zhao)
• ssl: clearer error message (Jianhui Zhao)

Bug Fixes

• skip a second login authentication fail in busybox (Jianhui Zhao)
• fix a log level (Jianhui Zhao)
• should exit when ssl_session_new fail (Jianhui Zhao)
• compile error with wolfssl (Jianhui Zhao)
• ssl3_write_pending:bad write retry (Jianhui Zhao)

Performance Improvements

• disconnect early when an invalid message was received (Jianhui Zhao)
• kill tty which inactive in 10 minutes (Jianhui Zhao)

Chores

• update README_ZH (Jianhui Zhao)
• fix FindLibev.cmake (Jianhui Zhao)
• update submodule url (Jianhui Zhao)
• bump version 7.5.0 (Jianhui Zhao)