More work on my elasticsearch client. Adding more tests and playing with rotor to build an async client.

Having fun with libsyntax for codegen. I’ve been constructing my ASTs manually (for shame), and am now appreciating the need for something like aster to make this more managable. I don’t regret working with libsyntax directly though, it’s helped me understand a lot about the Rust language and what the quote_* macros are really doing.