Merge pull request graphql-go#229 from graphql-go/atrniv/fix-cyclic-t…

…ypes

support for cyclic fields on defintion

Merge pull request graphql-go#195 from SnaphyLabs/master

Adding `AppendType` method to add Type to Schema object at runtime

Merge pull request graphql-go#216 from WindomZ/master

Examples: use '.Get("query")' instead of '["query"][0]'

Merge pull request graphql-go#176 from graphql-go/gofmt-s

gofmt -s