support ChaCha64

update support go version

Merge pull request #145 from artyom-smirnov/service_manager

Firebird services support

remove syscall.AF_IRDA

Merge pull request #175 from nakagami/issue174

Keep transaction when autcommit mode. fix #174

Merge pull request #173 from nakagami/issue169

Fix Issue #169

Merge pull request #165 from nakagami/issue164

fix issue #164

update error message

fix README

modify default auth_plugin_name to Srp256. fix issue #138