João Almeida

Allow to print log level as integer

3

### Reason To be able to have logs compliant with the Syslog Protocol ([RFC5424](http://www.ietf.org/rfc/rfc5424.txt) and [RFC3164](http://www.ietf.org/rfc/rfc3164.txt)), we need to print the log levels as integers. ### Changes Adds a flag...

Add optional func to set the span's error tag flag

7

Some APM providers (like Datadog) require the span error tag to be set in order to properly display the status of the trace. This PR will add a new MWOption...