fix(graphiql): upgrade codemirror-graphql to support graphql@0.11.x
fix(graphiql): upgrade codemirror-graphql to support graphql@0.11.x

postgraphql/postgraphql,calebmer/postgraphql,calebmer/postgraphql,calebmer/postgraphql,postgraphql/postgraphql,postgraphql/postgraphql,calebmer/postgraphql,postgraphql/postgraphql