0.5.1
Changes:
- add branch prediction hints
- add option CQL_ENABLE_LOGGER_BY_DEFAULT
- log sent and received message bytes for debug
- disable enum to string if EnumDescriptions specialization is not provided
- add backtrace information to exception message by default
- print thread id on every log message
- use seastar::data_sink instead of seastar::output_stream
- enable keepalive for all connection by default and allow configure parameters, update logging messages
- fix bugs in inet/time column type for newer seastar (20190627) and gcc 9