Path handling changed in Rocket 0.4 and this commit updates the way
those paths are handled. It adds an implementation of the
`FromFormValue` trait to the `GraphQLRequest` object. It also changes
the documentation to use the multi-segment query string syntax.
All existing tests pass as expected.
* Added juniper_iron crate
* Fixed up juniper_rocket crate
* Updated juniper/Cargo.toml
* Updated docs (readme, module docs)
* Export http integrator tests with export-test-schema feature
* Update CI tests (Use cargo-make )
* Format parts of the code base
