Adds Advanced Logging to server. Advanced Logging is an optional logging capability that allows customers to send log records to any number of destinations.
Supported destinations:
- file
- syslog (with out without TLS)
- raw TCP socket (with out without TLS)
Allows developers to specify discrete log levels as well as the standard trace, debug, info, ... panic. Existing code and logging API usage is unchanged.
Log records are emitted asynchronously to reduce latency to the caller. Supports hot-reloading of logger config, including adding removing targets.
Advanced Logging is configured within config.json via "LogSettings.AdvancedLoggingConfig" which can contain a filespec to another config file, a database DSN, or JSON.
* Consistent license message for all the go files
* Fixing the last set of unconsistencies with the license headers
* Addressing PR review comments
* Fixing busy.go and busy_test.go license header
Dump mlog to STDOUT before initialized, to allow for logging failures
that occur due to config parsing, etc.
Fix file logging to honour logger.FileJson instead of copying the
logger.ConsoleJson setting.
