Insustry standard URL for our API

[tjayrush]

I feel like our API is odd. Shouldn't it be

http://localhost:8080/blocks/:id/

or maybe even

http://localhost:8080/v3/blocks/:id/

(with a version string?)

Then we can remove things like http://localhost:8080/blocks?blocks=12 or http://localhost:8080/chunks?modes=index

Should be http://localhost:8080/chunks/index (I think.)