1.2.0
- Bump lightstep gem to 0.13
- Add LIGHTSTEP_MAX_BUFFERED_SPANS config ENV + setting for maximum number of spans to buffer
- Add LIGHTSTEP_MAX_LOG_RECORDS config ENV + setting for maximum number of log records that can be on a span
- Add LIGHTSTEP_MAX_REPORTING_INTERVAL_SECONDS config ENV + setting for max reporting flush interval to collector