Release Apache SkyWalking Go 0.6.0
Release Apache SkyWalking Go 0.6.0
	
	SkyWalking Go 0.6.0 is released. Go to downloads page to find release tars.
Features
- support attaching events to span in the toolkit.
- support record log in the toolkit.
- support manually report metrics in the toolkit.
- support manually set span error in the toolkit.
Plugins
- Support goframev2 goframev2.
Documentation
- Add docs for AddEventinTracing APIs
- Add Logging APIsdocument into Manual APIs.
- Add Metric APIsdocument into Manual APIs.
Bug Fixes
- Fix wrong docker image name and -versioncommand.
- Fix redis plugin cannot work in cluster mode.
- Fix cannot find file when exec build in test/plugins.
- Fix not set span error when http status code >= 400
- Fix http plugin cannot provide peer name when optional Host is empty.