BREAKING CHANGE: v2 -> v3

feat: update version

Update doc.go

Severe cloud/test/foaf/example remove output (#240)

* test(foaf): example remove

* test: more fix

* feat: update version

feat(api): add TestingGroup methods

docs: up version

Merge pull request #183 from SevereCloud/dev-v2.14.0

v2.14.0

docs: up version

Merge pull request #178 from SevereCloud/dev-v2.13.0

v2.13.0

test: skip if flood control