text: Title: which graphiql version is using?
  Body: I have `Flask-GraphQL==2.0.1` installed and inside Chrome it is requiring  dependencies like
  > http://cdn.jsdelivr.net/npm/graphiql@0.11.11/graphiql.min.js
  note: currently the latest version in jsdelivr is 1.0.6
  
  
  however the github readme says
  > graphiql_version: The graphiql version to load. __Defaults to "1.0.3".__
  
  reallly? If I set `graphiql_version=1.0.3 ` explicitly, then Chrome throws error
  > Uncaught Error: GraphiQL 0.18.0 and after is not compatible with React 15 or below
  
  I did not find anywhere the `render_graphiql.py` set the variable to "1.0.3"
  In my local drive is `GRAPHIQL_VERSION = '0.11.11'`;
  and gitlab `GRAPHIQL_VERSION = '0.7.1'`