Changes Since v0.1.0

088b504 Fix 'rpc error: code = InvalidArgument desc = Invalid parent id!' errors. (#27)
4ebc25a Update metric exporter to v0.6.0 compat (#33) (#34)
ad51e85 Add comments need to be noted for future works (#32)
2c699b1 Fix aggregation handling and example (#28)
bc5120a Support metric exporter (#24)
966afdc Bump go.opentelemetry.io/otel to v0.5.0. (#18)
aa81cfc Move HTTP example for Trace into trace directory (#15)