- Added connection::connection overload accepting a user-defined SSL
context.
- Added SSL certificate validation example.
- Removed ssl_options.
- Fixed an incorrect constexpr implementation
(value::is_convertible_to).
- Made I/O objects' valid() behavior after move operations more uniform.
- Changed exception type thrown by value::get to a custom one defined in
Boost.Mysql.
- Changed docs link in README.
closes#39closes#27closes#25closes#10